{"product_id":"icp-defrost-control-board-for-yg042ga2-heat-pump-board-ships-today-1","title":"ICP Defrost Control Board for YG042GA2 — Heat Pump Board | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM defrost control board (ICP part number 1069364) manages the defrost cycle on your ICP \/ Heil \/ Tempstar YG042GA2 heat pump. During winter operation, frost builds on the outdoor coil and chokes off heat transfer. The defrost board monitors the defrost thermostat and run-time timer, then commands the reversing valve into cooling mode, shuts off the outdoor fan, and energizes auxiliary heat to melt the ice — before returning the system to heating. A failed defrost board leaves the outdoor coil iced over, kills heating capacity, and can trip the compressor on high pressure.\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\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eDefrost Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefrost Timer \/ Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar\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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect OEM-fit replacement for the ICP \/ Heil \/ Tempstar YG042GA2 heat pump. The 1069364 defrost board is used across multiple ICP-family heat pumps; verify the connector layout and timer pin selection match your existing board before installing, and set the defrost interval jumper to the original setting.\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 unit's control\/electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every plug, wire, and the defrost-time jumper position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the harness connectors, remove the board's mounting screws or standoffs, and lift the old board out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, set the defrost-time jumper to match the original, and reconnect all connectors per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and initiate a forced defrost (per the board's test pins) to confirm the reversing valve, outdoor fan, and aux heat respond correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOutdoor coil stays caked in ice during heating mode.\u003c\/li\u003e\n\u003cli\u003eHeat pump never enters or never exits a defrost cycle.\u003c\/li\u003e\n\u003cli\u003eWeak or no heat output in cold weather.\u003c\/li\u003e\n\u003cli\u003eNo response from the board's defrost test\/initiate pins.\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":63027193512307,"sku":"1069364","price":214.5,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047503118707,"sku":"1069364-GEN","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-1069364_fcbc0fd7-098e-435f-9edd-29abacf9c906.jpg?v=1782886964","url":"https:\/\/nationalhvacparts.com\/products\/icp-defrost-control-board-for-yg042ga2-heat-pump-board-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}