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If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-13, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531185590491,"sku":"SPH4005-13","price":3352.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-14-neptronic-variable-frequency-drive-vfd","title":"SPH4005-14 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-14\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-14\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-14, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531185623259,"sku":"SPH4005-14","price":3515.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-15-neptronic-variable-frequency-drive-vfd","title":"SPH4005-15 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-15\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-15\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-15, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531185656027,"sku":"SPH4005-15","price":3955.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-16-neptronic-variable-frequency-drive-vfd","title":"SPH4005-16 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-16\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-16\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-16, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531185688795,"sku":"SPH4005-16","price":4214.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-17-neptronic-variable-frequency-drive-vfd","title":"SPH4005-17 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-17\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-17\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-17, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531185721563,"sku":"SPH4005-17","price":5594.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-18-neptronic-variable-frequency-drive-vfd","title":"SPH4005-18 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-18\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-18\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-18, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187163355,"sku":"SPH4005-18","price":3655.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-19-neptronic-variable-frequency-drive-vfd","title":"SPH4005-19 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-19\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-19\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-19, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187228891,"sku":"SPH4005-19","price":5608.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-2-neptronic-variable-frequency-drive-vfd","title":"SPH4005-2 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-2\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-2\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-2, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187261659,"sku":"SPH4005-2","price":2296.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-20-neptronic-variable-frequency-drive-vfd","title":"SPH4005-20 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-20\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-20\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-20, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187327195,"sku":"SPH4005-20","price":6385.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-21-neptronic-variable-frequency-drive-vfd","title":"SPH4005-21 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-21\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-21\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-21, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187359963,"sku":"SPH4005-21","price":4904.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-22-neptronic-variable-frequency-drive-vfd","title":"SPH4005-22 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-22\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-22\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-22, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187425499,"sku":"SPH4005-22","price":5947.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-23-neptronic-variable-frequency-drive-vfd","title":"SPH4005-23 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-23\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-23\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-23, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187491035,"sku":"SPH4005-23","price":7189.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-24-neptronic-variable-frequency-drive-vfd","title":"SPH4005-24 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-24\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-24\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-24, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531187556571,"sku":"SPH4005-24","price":3317.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sp3110-neptronic-r8222a1002b-relay","title":"SP3110 – Neptronic R8222A1002B Relay","description":"\u003cp\u003e\u003cstrong\u003eSP3110\u003c\/strong\u003e is a genuine Neptronic R8222A1002B Relay. Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSP3110\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SP3110, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189031131,"sku":"SP3110","price":189.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-25-neptronic-variable-frequency-drive-vfd","title":"SPH4005-25 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-25\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-25\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-25, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189063899,"sku":"SPH4005-25","price":3977.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sp3111-neptronic-r8222d1014-relay","title":"SP3111 – Neptronic R8222D1014 Relay","description":"\u003cp\u003e\u003cstrong\u003eSP3111\u003c\/strong\u003e is a genuine Neptronic R8222D1014 Relay. Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSP3111\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SP3111, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189096667,"sku":"SP3111","price":217.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sp3115-neptronic-rcp-monostaple-relay-24v","title":"SP3115 – Neptronic Rcp Monostaple Relay 24V","description":"\u003cp\u003e\u003cstrong\u003eSP3115\u003c\/strong\u003e is a genuine Neptronic Rcp Monostaple Relay 24V. Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSP3115\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SP3115, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189162203,"sku":"SP3115","price":180.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-3-neptronic-variable-frequency-drive-vfd","title":"SPH4005-3 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-3\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-3\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-3, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189194971,"sku":"SPH4005-3","price":2398.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-4-neptronic-variable-frequency-drive-vfd","title":"SPH4005-4 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-4\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-4\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-4, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189260507,"sku":"SPH4005-4","price":3066.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-5-neptronic-variable-frequency-drive-vfd","title":"SPH4005-5 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-5\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-5\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-5, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189326043,"sku":"SPH4005-5","price":2935.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-6-neptronic-variable-frequency-drive-vfd","title":"SPH4005-6 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-6\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-6\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-6, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189391579,"sku":"SPH4005-6","price":4606.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-7-neptronic-variable-frequency-drive-vfd","title":"SPH4005-7 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-7\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-7\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-7, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189424347,"sku":"SPH4005-7","price":2649.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-8-neptronic-variable-frequency-drive-vfd","title":"SPH4005-8 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-8\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-8\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-8, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531189489883,"sku":"SPH4005-8","price":2430.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"sph4005-9-neptronic-variable-frequency-drive-vfd","title":"SPH4005-9 – Neptronic Variable Frequency Drive (VFD)","description":"\u003cp\u003e\u003cstrong\u003eSPH4005-9\u003c\/strong\u003e is a genuine Neptronic Variable Frequency Drive (VFD). Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSPH4005-9\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SPH4005-9, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531191619803,"sku":"SPH4005-9","price":2882.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"swskvpwrrelay120-neptronic-skv-power-relay-box-120v-for-skv-series","title":"SWSKVPWRRELAY120 – Neptronic SKV Power Relay Box 120V for SKV Series","description":"\u003cp\u003e\u003cstrong\u003eSWSKVPWRRELAY120\u003c\/strong\u003e is a genuine Neptronic SKV Power Relay Box 120V used on Neptronic SKV Series humidifiers. Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSWSKVPWRRELAY120\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SWSKVPWRRELAY120, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531262988507,"sku":"SWSKVPWRRELAY120","price":3143.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"},{"product_id":"swskvpwrrelay230-neptronic-skv-power-relay-box-230v-for-skv-series","title":"SWSKVPWRRELAY230 – Neptronic SKV Power Relay Box 230V for SKV Series","description":"\u003cp\u003e\u003cstrong\u003eSWSKVPWRRELAY230\u003c\/strong\u003e is a genuine Neptronic SKV Power Relay Box 230V used on Neptronic SKV Series humidifiers. Contactors, solid-state relays and drives switch power to the heating elements and motors on command from the controller; they wear with every heating cycle.\u003c\/p\u003e\u003ch3\u003eCommon signs it needs replacing\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eElements stay on or will not energize\u003c\/li\u003e\n\u003cli\u003ePitted, welded or burned contacts\u003c\/li\u003e\n\u003cli\u003eChattering, buzzing or overheating relay\u003c\/li\u003e\n\u003cli\u003eHeating stages that do not follow the demand signal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNeptronic uses different contactors, relays and drives across capacities and voltages, so match the part number on your existing part or in your unit's parts list to \u003cstrong\u003eSWSKVPWRRELAY230\u003c\/strong\u003e. If the label is gone, send us the model and serial number from the humidifier nameplate and we will confirm fit.\u003c\/p\u003e\u003ch3\u003eWhy buy from RapidHVACParts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Neptronic OEM\u003c\/strong\u003e – factory part number SWSKVPWRRELAY230, supplied through ETS, a Neptronic parts and equipment distributor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal lead times on the page\u003c\/strong\u003e – parts we stock ship from our warehouse; everything else ships direct from Neptronic, with the current factory lead time shown above.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp from people who work on these systems\u003c\/strong\u003e – send us your model and serial number and we will confirm the right part before you order.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Neptronic","offers":[{"title":"Default Title","offer_id":50531263021275,"sku":"SWSKVPWRRELAY230","price":2258.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3951\/7147\/files\/NeptronicHumidifier-Parts-InStock_45438c85-4296-4bd5-9b76-514bbee1b0bc.png?v=1770390252"}],"url":"https:\/\/www.rapidhvacparts.com\/collections\/neptronic-contactors-relays-drives.oembed?page=2","provider":"RapidHVACParts","version":"1.0","type":"link"}