{"product_id":"tempstar-comfortalert-control-board-for-t2a330gkd200-diagnostic-module-ships-today","title":"Tempstar ComfortAlert Control Board for T2A330GKD200 — 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 your Tempstar T2A330GKD200 condensing unit. The ComfortAlert board continuously monitors compressor and electrical operation, detecting faults such as locked rotor, low or high voltage, open circuits, and welded contactor conditions. It communicates problems through a flash-code LED, helping technicians diagnose system issues quickly and protecting the compressor from damaging conditions. When this board fails, the outdoor unit may not start, may short-cycle, may lock out on a fault that isn't actually present, or may stop providing diagnostic feedback entirely. Because the compressor is the most expensive component in the system, a properly functioning diagnostic board is critical to protecting it.\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 (ICP \/ Heil)\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\u003eIndicators\u003c\/td\u003e\n\u003ctd\u003eLED flash-code fault reporting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirectly fits the Tempstar T2A330GKD200 condensing unit. ComfortAlert diagnostic modules are used across many Tempstar, ICP, Heil, and Comfortmaker single-stage condensers and heat pumps. Always confirm the original part number (1177402) before ordering, as diagnostic board revisions can vary by platform.\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 board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every low-voltage and sensor wire connection before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the wiring harnesses and release the board from its standoffs or mounting clips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Seat the new board on its mounts and reconnect each harness to the matching terminal per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and confirm normal operation with no fault flash codes on the diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutdoor unit won't start or short-cycles with no clear mechanical cause.\u003c\/li\u003e\n\u003cli\u003eDiagnostic LED is dark or shows erratic, unresolvable flash codes.\u003c\/li\u003e\n\u003cli\u003eNuisance lockouts on faults that aren't actually present.\u003c\/li\u003e\n\u003cli\u003eVisible scorching, swollen components, or corrosion 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":63021824901491,"sku":"1177402-GEN","price":165.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048417083763,"sku":"1177402","price":214.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_459ec6d0-0070-4bc2-a2be-7e8541e567ae.jpg?v=1782958695","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-comfortalert-control-board-for-t2a330gkd200-diagnostic-module-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}