{"product_id":"tempstar-control-board-for-t2a342gkd200-comfortalert-diagnostic-module-ships-today","title":"Tempstar Control Board for T2A342GKD200 — ComfortAlert Diagnostic Module | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM ComfortAlert control board (part number 1177402) is the compressor diagnostic and protection module for the Tempstar T2A342GKD200 condensing unit. It continuously monitors compressor and electrical operating conditions — voltage, current draw, run\/start behavior, and contactor signals — and uses an onboard LED to flash fault codes that pinpoint problems such as a locked rotor, open circuit, low voltage, short cycling, or a welded contactor. By detecting abnormal conditions early, the module helps prevent catastrophic compressor failure and dramatically reduces diagnostic time. When this board fails, you may lose compressor protection, see erratic or missing fault codes, or experience nuisance lockouts. Replacing it with the genuine OEM ComfortAlert module restores accurate monitoring and full system protection.\u003c\/p\u003e\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\u003eComfortAlert Diagnostic Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eCompressor Monitoring \u0026amp; Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eLED Flash Fault Codes\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eFits the Tempstar T2A342GKD200 condensing unit and other ICP\/Tempstar-family models (Heil, Comfortmaker) that use the 1177402 ComfortAlert module. Confirm the part number on your existing board before ordering, as ComfortAlert revisions vary by platform.\u003c\/p\u003e\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 service panel to reach the control compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every low-voltage and sensing lead landed on the module before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the harness connections, release the mounting clips or screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Snap or screw the new ComfortAlert module into place and reconnect each lead exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, run a cooling cycle, and confirm the status LED shows normal operation with no fault flashes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStatus LED is dark or displays erratic, meaningless flash codes.\u003c\/li\u003e\n\u003cli\u003eNuisance compressor lockouts with no underlying fault.\u003c\/li\u003e\n\u003cli\u003eLoss of compressor protection or no diagnostic feedback during a fault.\u003c\/li\u003e\n\u003cli\u003eVisible burning, corrosion, or damage on the board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\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":63021823983987,"sku":"1177402-GEN","price":118.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048435794291,"sku":"1177402","price":153.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_7fbb8972-348f-4715-859b-3dcf730e9d42.jpg?v=1782959510","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-control-board-for-t2a342gkd200-comfortalert-diagnostic-module-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}