{"product_id":"tempstar-control-board-for-t2a318gkd200-comfort-alert-diagnostic-ships-today","title":"Tempstar Control Board for T2A318GKD200 – Comfort Alert Diagnostic | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM Comfort Alert control board (Part No. 1177402) for the Tempstar T2A318GKD200 condensing unit. The Comfort Alert module is a compressor diagnostic board that monitors the compressor and outdoor unit electrical signature in real time, detecting faults such as low line voltage, locked rotor, open run capacitor, missing 24V signal, and welded contactor conditions. It communicates these faults through an onboard status LED flash code, which dramatically shortens diagnostic time in the field. When this board fails, the outdoor unit may lose protective monitoring, fail to stage properly, or stop responding to thermostat calls entirely. Replacing it with the correct OEM module restores both compressor protection and the built-in diagnostics technicians rely on.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\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\u003e1177402\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eComfort Alert Compressor Diagnostic Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eCompressor monitoring \u0026amp; fault flash-code diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eOutdoor unit control panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned as the factory replacement for the Tempstar T2A318GKD200 air conditioning condenser. The Comfort Alert diagnostic module is shared across many ICP-family outdoor units (Heil, Comfortmaker) of this generation. Verify the part number and connector layout against your existing board before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e – Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e – Remove the condenser control panel cover to expose the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph every connector and wire location on the existing board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Unplug the low-voltage and sense leads, then release the board from its standoffs or mounting screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new board and reconnect each lead exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power, call for cooling, and confirm the status LED shows a normal run code.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo status LED activity or a continuous fault flash code with no real fault present.\u003c\/li\u003e\n\u003cli\u003eOutdoor unit fails to start despite a confirmed 24V call.\u003c\/li\u003e\n\u003cli\u003eErratic compressor cycling or loss of protective lockout.\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or damaged traces on the board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed 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":63021831422323,"sku":"1177402-GEN","price":184.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048434647411,"sku":"1177402","price":240.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_45989c33-a0c5-4468-a540-6da55c8d3932.jpg?v=1782959493","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-control-board-for-t2a318gkd200-comfort-alert-diagnostic-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}