{"product_id":"icp-defrost-control-board-for-yg018gb2-heat-pump-defrost-timer-ships-today-1","title":"ICP Defrost Control Board for YG018GB2 — Heat Pump Defrost Timer | 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 YG018GB2 heat pump. In heating mode, frost builds on the outdoor coil; the defrost board monitors time and temperature, then periodically reverses the system to melt that frost and protect efficiency. The board controls the reversing valve solenoid, the defrost relay, and the timing intervals, and coordinates with the outdoor coil sensor. A failed defrost board typically shows up as an iced-over outdoor coil in winter, a unit stuck in defrost, or a heat pump that won't switch between heating and cooling. Replacing the board restores correct defrost timing and full heat-pump performance.\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 (Tempstar \/ Heil \/ Comfortmaker)\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\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eHeat-pump defrost timing \u0026amp; reversing valve control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eYG018GB2\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 YG018GB2 heat pump and other ICP-family outdoor units that use the 1069364 defrost board. Verify the printed part number 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 disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condensing unit's electrical service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector on the board before unplugging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the low-voltage harness, sensor, and relay leads, then unscrew the old board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board and reconnect each connector exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, initiate a defrost (or use the forced-defrost pins), and confirm the reversing valve and fan respond 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 clears in heating mode.\u003c\/li\u003e\n\u003cli\u003eUnit gets stuck in defrost or defrosts far too often.\u003c\/li\u003e\n\u003cli\u003eHeat pump won't switch between heating and cooling.\u003c\/li\u003e\n\u003cli\u003eNo response from the reversing valve or defrost relay.\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":63027195609459,"sku":"1069364","price":175.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047501087091,"sku":"1069364-GEN","price":134.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-1069364_cd1a9b17-6afe-443f-b729-7c74d545c101.jpg?v=1782886840","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-yg018gb2-heat-pump-defrost-timer-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}