{"product_id":"icp-defrost-control-board-for-yg024g-heat-pump-ships-today-1","title":"ICP Defrost Control Board for YG024G – Heat Pump | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM defrost control board (part number 34332101) governs the defrost cycle on the ICP\/Heil\/Tempstar YG024G heat pump. During heating operation the outdoor coil collects frost; this board reads the coil temperature sensor and tracks compressor run time, then periodically commands a defrost to melt that frost and keep the heat pump efficient. It coordinates the reversing valve, the compressor contactor, the outdoor fan, and the defrost timing intervals. When the board fails you may find the outdoor coil fully iced over, a system that never defrosts (or defrosts far too often), missing auxiliary heat staging, or a unit that won't change between heating and cooling. Because this single board controls so many functions, one failure can imitate several separate component faults – making the defrost board a high-value diagnostic and replacement part.\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\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e34332101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefrost Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDefrost timing, reversing valve \u0026amp; fan control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect OEM replacement for the ICP\/Heil\/Tempstar\/Comfortmaker YG024G heat pump and units calling for part 34332101. Confirm the part number and connector layout against your existing board before ordering.\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 control box cover.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph every wire harness and plug location before unplugging anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Disconnect the harnesses, release the standoffs\/screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Seat the new board on the standoffs and reconnect each harness per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power, run a heating call, and initiate or observe a defrost cycle to confirm operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOutdoor coil ices over and never clears.\u003c\/li\u003e\n\u003cli\u003eSystem defrosts too often or not at all.\u003c\/li\u003e\n\u003cli\u003eReversing valve won't switch between heat and cool.\u003c\/li\u003e\n\u003cli\u003eErratic outdoor fan or compressor behavior in heating mode.\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":63027195478387,"sku":"34332101","price":193.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047501185395,"sku":"34332101-GEN","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-34332101_9ff944bc-b339-4902-967d-23cfbcfd23fa.jpg?v=1782886855","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-yg024g-heat-pump-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}