{"product_id":"tempstar-control-board-for-t2a330gkd100-comfortalert-diagnostic-module-ships-today","title":"Tempstar Control Board for T2A330GKD100 — ComfortAlert Diagnostic Module | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is the genuine OEM ComfortAlert diagnostic control board (part number 1177402) for the Tempstar T2A330GKD100 condensing unit. The ComfortAlert module continuously monitors compressor and system electrical operation, watching for conditions such as low voltage, locked rotor, open circuit, missing run capacitor, welded contactor, and short cycling. When a fault occurs it flashes a coded LED so a technician can diagnose the problem in minutes instead of hours. A failed board commonly shows up as a unit that will not start, intermittent compressor operation, or a steady alert LED that never clears. Operating on 24V control voltage, it is the brain that protects the compressor — the most expensive component in the system — 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\u003ePart 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 (OEM)\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 \u0026amp; system fault monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eT2A330GKD100\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 a direct-fit replacement for the Tempstar T2A330GKD100 air conditioning condenser. This ComfortAlert module is also used across related ICP, Heil, and Comfortmaker single-stage condensing units that originally shipped with part 1177402. Always confirm the printed part number on 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 disconnect and breaker, then verify zero voltage with a multimeter before touching any wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser service panel to expose the control box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and terminal on the existing board before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the low-voltage leads, release the mounting clips or screws, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board in the same orientation and reconnect each wire 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 codes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompressor will not start or short cycles repeatedly\u003c\/li\u003e\n\u003cli\u003eSteady or rapidly flashing fault LED that will not clear\u003c\/li\u003e\n\u003cli\u003eNo response from the unit even with confirmed 24V at the board\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 on orders placed before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021830865267,"sku":"1177402-GEN","price":129.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048434844019,"sku":"1177402","price":168.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_a11f528d-2f8a-4f0e-937f-23f8590c9557.jpg?v=1782959500","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-control-board-for-t2a330gkd100-comfortalert-diagnostic-module-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}