{"product_id":"tempstar-control-board-for-t2a336gkd200-comfortalert-diagnostic-module-ships-today","title":"Tempstar Control Board for T2A336GKD200 — ComfortAlert Diagnostic Module | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM ComfortAlert control board (part number 1177402) for the Tempstar T2A336GKD200 condensing unit. The ComfortAlert module is a compressor diagnostic and protection board that continuously monitors compressor and electrical operation — tracking voltage, current draw, and run behavior to detect faults such as locked rotor, open circuit, missing phase, low voltage, short cycling, and welded contactor conditions. When a fault occurs, the board flashes a diagnostic alert code via its onboard LED so a technician can pinpoint the problem quickly instead of guessing. A failed control board can leave the compressor unprotected or prevent the system from running at all, so a known-good OEM replacement keeps the equipment safe and serviceable.\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\u003eComfortAlert 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 diagnostics\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\u003eIndicators\u003c\/td\u003e\n\u003ctd\u003eLED alert\/flash codes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eT2A336GKD200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct OEM replacement for the Tempstar T2A336GKD200 condensing unit. ComfortAlert board 1177402 is also used across matching ICP-family outdoor units — including comparable Heil, Comfortmaker, and Tempstar single-stage condensers equipped with the ComfortAlert diagnostic module. Confirm the part number on the existing board before ordering.\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 main 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 harness and terminal connection on the board before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the low-voltage and sensing leads, release the mounting standoffs or screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new board on its standoffs and reconnect each harness exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and confirm the LED shows normal status with the compressor running correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo diagnostic LED activity or a board that won't power up.\u003c\/li\u003e\n\u003cli\u003eCompressor will not start or the board reports false\/constant fault codes.\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or scorched components on the board.\u003c\/li\u003e\n\u003cli\u003eErratic compressor protection — short cycling or no fault response when one is expected.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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":63021824246131,"sku":"1177402-GEN","price":164.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048435663219,"sku":"1177402","price":214.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_77bb9f23-a70c-436a-b580-2f85126a7924.jpg?v=1782959505","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-control-board-for-t2a336gkd200-comfortalert-diagnostic-module-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}