{"product_id":"icp-defrost-control-board-for-ye048g-heat-pump-oem-ships-today-1","title":"ICP Defrost Control Board for YE048G — Heat Pump OEM | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is a genuine OEM defrost control board (part number 34332101) for the ICP \/ Tempstar \/ Heil YE048G heat pump. The defrost board is the brain of the outdoor unit in heating mode: it monitors the defrost thermostat and ambient conditions, times the heat-pump defrost cycle, switches the reversing valve, and cycles the outdoor fan and auxiliary heat so the outdoor coil can shed frost. When this board fails, the heat pump may ice over solid, fail to defrost, run the auxiliary strip heat constantly, or short-cycle. Typical symptoms include a thick layer of ice on the outdoor coil that never clears, no heating output, the reversing valve not switching, the outdoor fan running during defrost, or no power to the contactor coil at all.\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eHeat Pump Defrost Cycle Management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\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\u003eDesigned as the factory replacement defrost board for the ICP YE048G heat pump and used across compatible ICP-family outdoor units sold under the Heil, Tempstar, and Comfortmaker labels. Match the part number and connector layout to your existing board before installing.\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 control panel cover on the condensing unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every connector, jumper, and the defrost timing pin setting before unplugging anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the wiring harnesses and remove the mounting screws or standoffs holding the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, set the defrost timing jumper to match the original, and reconnect each harness per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, place a call for heat, and confirm normal heating and a proper defrost cycle.\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\u003eHeat pump produces no heat or only auxiliary strip heat\u003c\/li\u003e\n\u003cli\u003eReversing valve does not switch during defrost\u003c\/li\u003e\n\u003cli\u003eSystem short-cycles or the contactor never energizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day on orders placed 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":63027196461427,"sku":"34332101","price":188.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047500104051,"sku":"34332101-GEN","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-34332101_f457e351-db57-428d-b497-617ffbd433da.jpg?v=1782886789","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-ye048g-heat-pump-oem-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}