{"product_id":"icp-defrost-control-board-for-yj018ga1-heat-pump-ships-today-1","title":"ICP Defrost Control Board for YJ018GA1 — Heat Pump | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM defrost control board (part number 1069364) is the brain of the defrost cycle on the ICP \/ Tempstar \/ Heil YJ018GA1 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. The board coordinates the reversing valve, compressor, and outdoor fan, and provides timing logic for proper heat-pump operation. A failed board leads to ice build-up on the coil, no defrost, short cycling, or a unit that won't run 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\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1069364\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\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 Timing\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, Tempstar, Heil, Comfortmaker, and Arcoaire YJ018GA1 heat pump. Match the board part number and connector layout to 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 breaker and pull the disconnect; verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser service panel to reach the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every connector and wire location before unplugging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Release the board standoffs or screws, unplug each harness, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, reconnect every harness per your photo, and set any defrost timing pins to match the original.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a heating cycle, and confirm 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 over with no defrost cycle\u003c\/li\u003e\n\u003cli\u003eHeat pump short cycles or won't start in heating\u003c\/li\u003e\n\u003cli\u003eReversing valve or fan not switching during defrost\u003c\/li\u003e\n\u003cli\u003eBurnt, corroded, or visibly damaged board components\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":63027191120243,"sku":"1069364","price":162.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047503839603,"sku":"1069364-GEN","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-1069364_54e545c5-9047-40e9-8b2c-3230aa59470e.jpg?v=1782887067","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-yj018ga1-heat-pump-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}