{"product_id":"icp-defrost-control-board-for-wch3302gka1-heat-pump-ships-today-1","title":"ICP Defrost Control Board for WCH3302GKA1 — Heat Pump | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is a genuine OEM defrost control board (OEM part #1173636) for the ICP\/Heil\/Tempstar WCH3302GKA1 heat pump. The defrost board is the brain of the outdoor unit's heating operation — it monitors the coil temperature sensor and run time, then initiates a defrost cycle to melt ice off the outdoor coil by energizing the reversing valve and pausing the outdoor fan. It also handles compressor timing\/anti-short-cycle protection. When this board fails, the heat pump may ice over, fail to defrost, lock out the compressor, or behave erratically in heating mode.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003e1173636\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eDefrost Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefrost \/ Heat Pump Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar \/ Comfortmaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eWCH3302GKA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned as a direct OEM replacement for the ICP\/Heil\/Tempstar WCH3302GKA1 heat pump. Defrost boards are model\/series specific — match the OEM part number and connector layout before installing, and confirm the coil sensor is compatible.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser service\/electrical panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every plug and wire position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the connectors, release the standoffs\/screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and reconnect each plug to match your photo and the wiring diagram.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heating call, and verify normal operation and defrost initiation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOutdoor coil ices up and never defrosts\u003c\/li\u003e\n\u003cli\u003eHeat pump won't switch into or out of defrost\u003c\/li\u003e\n\u003cli\u003eCompressor lockout or no outdoor unit operation in heat\u003c\/li\u003e\n\u003cli\u003eErratic timing, short cycling, or failed control diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63027253870963,"sku":"1173636","price":188.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047491584371,"sku":"1173636-GEN","price":144.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-1173636_909b5a07-814a-4071-8cee-66268e004165.jpg?v=1782886458","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-wch3302gka1-heat-pump-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}