{"product_id":"icp-defrost-control-board-for-yg048gc-heat-pump-timed-demand-defrost-ships-today-1","title":"ICP Defrost Control Board for YG048GC — Heat Pump Timed\/Demand Defrost | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM defrost control board (ICP part number 34332101) is the brain of the defrost cycle on your ICP\/Tempstar\/Heil YG048GC heat pump. It monitors coil temperature and run time, then initiates and terminates the defrost cycle to clear frost from the outdoor coil during heating operation. The board energizes the reversing valve, controls the compressor and outdoor fan, and signals the indoor unit for auxiliary heat. A failed defrost board is one of the most common causes of a heat pump that ices over, blows cold air in heating mode, or fails to defrost. The board operates on a 24V control signal and includes defrost timing and temperature-sensor inputs.\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 (Tempstar \/ Heil)\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHeat Pump Defrost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct OEM replacement for the ICP \/ Tempstar \/ Heil YG048GC heat pump and other ICP-family condensing units that originally shipped with board 34332101. Always confirm the part number printed on 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 outdoor disconnect and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the outdoor unit's control-box service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and terminal location before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and unplug the low-voltage and sensor connectors, then unscrew the old defrost board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board on the standoffs and reconnect every wire exactly as photographed, including the coil temperature sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and run a heating\/defrost cycle to confirm the board initiates and terminates defrost correctly.\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 defrosts\u003c\/li\u003e\n\u003cli\u003eHeat pump blows cold air in heating mode\u003c\/li\u003e\n\u003cli\u003eReversing valve or aux heat fails to energize during defrost\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or a non-responsive board\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":63027192955251,"sku":"34332101","price":154.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047503413619,"sku":"34332101-GEN","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-34332101_03276185-47d0-44e0-ab94-fc5444076fb8.jpg?v=1782887006","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-yg048gc-heat-pump-timed-demand-defrost-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}