{"product_id":"icp-defrost-control-board-for-yc036ha-heat-pump-34332100-ships-today-1","title":"ICP Defrost Control Board for YC036HA — Heat Pump 34332100 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM defrost control board (part number 34332100) is the brain that manages the defrost cycle on your ICP Tempstar Heil YC036HA heat pump. During cold-weather operation it monitors the defrost thermostat and a timed interval, then commands the reversing valve and outdoor fan to clear frost buildup from the outdoor coil so the system keeps heating efficiently. A failed board can leave the outdoor coil iced over, lock the unit out of defrost, fail to energize auxiliary\/emergency heat, or short-cycle the compressor. Common symptoms include a heavily frosted or iced outdoor coil, no defrost cycle initiating, the reversing valve not switching during defrost, or the unit failing to call for backup heat. The board operates on the 24V control circuit and drives the reversing valve, fan, and heat relays.\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\u003e34332100\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\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHeat Pump Defrost Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-fit OEM replacement for the ICP Tempstar Heil YC036HA heat pump and other ICP-family outdoor units using this defrost board. Confirm the board's part number and connector layout match your existing control 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 breaker and disconnect, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control access panel on the condensing unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector on the board, noting terminal positions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the harnesses, release the board's mounting standoffs or screws, and lift the old board out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new board on the standoffs and reconnect every harness to the matching terminal per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heating call, and verify normal operation and proper 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 over and never defrosts\u003c\/li\u003e\n\u003cli\u003eReversing valve or fan doesn't respond during defrost\u003c\/li\u003e\n\u003cli\u003eAuxiliary\/emergency heat fails to energize\u003c\/li\u003e\n\u003cli\u003eCompressor short-cycling or no response to heating call\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":63027198034291,"sku":"34332100","price":194.94,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047497679219,"sku":"34332100-GEN","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-34332100_ee469bba-dfb6-41ef-8884-d15be96b727d.jpg?v=1782886680","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-yc036ha-heat-pump-34332100-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}