{"product_id":"tempstar-defrost-control-board-for-t2h360gka200-heat-pump-ships-today","title":"Tempstar Defrost Control Board for T2H360GKA200 — Heat Pump | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the genuine OEM defrost control board (part 1173636) for the Tempstar T2H360GKA200 heat pump. The defrost board monitors outdoor coil temperature and run time, then initiates and terminates the defrost cycle to clear frost from the outdoor coil during heating. It coordinates the reversing valve, outdoor fan, compressor, and auxiliary heat. A failed defrost board causes ice build-up on the outdoor coil, no defrost cycles, short cycling, or a unit that won't run at all — making it a critical component for reliable winter heat pump operation.\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\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003e1173636\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\u003eTempstar (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHeat Pump Outdoor Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt for the Tempstar T2H360GKA200 heat pump and matching ICP\/Heil\/Comfortmaker outdoor units specifying part 1173636. Match the board's part number, terminal layout, and defrost-timing pin options to your original 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 outdoor disconnect; verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the outdoor unit electrical\/control panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wire connections and note the defrost timing jumper\/pin setting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect wiring, release the mounting standoffs\/screws, and remove the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, set the defrost timing pins to match the original, and reconnect each wire per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify normal heating operation; initiate a forced defrost (per service instructions) to confirm the cycle runs and terminates.\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 energize the compressor\u003c\/li\u003e\n\u003cli\u003eReversing valve or outdoor fan not controlled correctly during defrost\u003c\/li\u003e\n\u003cli\u003eBurnt traces, scorch marks, or a blown relay on the board\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":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021819265395,"sku":"1173636-GEN","price":159.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048439923059,"sku":"1173636","price":206.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-defrost-1173636_d8f5b5bb-76ee-4aff-b213-6d8fb3dde9df.jpg?v=1782959672","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-defrost-control-board-for-t2h360gka200-heat-pump-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}