{"product_id":"tempstar-comfort-alert-control-board-for-t4a324gkd200-compressor-diagnostic-module-ships-today","title":"Tempstar Comfort Alert Control Board for T4A324GKD200 — Compressor Diagnostic Module | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is the OEM Comfort Alert control board (part number 1177402) for the Tempstar T4A324GKD200 condensing unit. The Comfort Alert module is a compressor diagnostic board that continuously monitors the outdoor unit's compressor and 24V control circuit. It watches for conditions such as locked rotor, open circuit, short cycling, low voltage, missing run capacitor, and welded contactor, then flags faults with a status LED so a technician can pinpoint the problem quickly. When this board fails, the system may lose protective monitoring, throw false fault codes, or fail to energize the compressor at all. Replacing it with the correct OEM module restores both proper operation and the built-in diagnostics that protect the compressor from premature failure.\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\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\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\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eA direct OEM replacement for the Tempstar T4A324GKD200 condensing unit. As a Carrier\/ICP family part (1177402), it also services comparable Tempstar, Heil, Comfortmaker, and ICP outdoor units that use the Comfort Alert diagnostic module. Confirm the part number on your 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 breaker. Verify zero voltage at the board with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condensing unit's service\/control panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and connector position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the low-voltage leads and any quick-connects, then unscrew or unclip the old board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new Comfort Alert board on the standoffs 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 normal operation with no fault flashes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStatus LED is dark or flashing persistent, unexplained fault codes.\u003c\/li\u003e\n\u003cli\u003eCompressor won't energize even with a good contactor and capacitor.\u003c\/li\u003e\n\u003cli\u003eSystem short-cycles or trips on protection without a real fault.\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or scorched 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 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":63021812875635,"sku":"1177402-GEN","price":159.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048415215987,"sku":"1177402","price":207.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_14164756-3c1b-43be-b69b-878820cb3bf0.jpg?v=1782958667","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-comfort-alert-control-board-for-t4a324gkd200-compressor-diagnostic-module-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}