{"product_id":"tempstar-control-board-for-t2a324gkd100-comfortalert-diagnostics-module-ships-today","title":"Tempstar Control Board for T2A324GKD100 — ComfortAlert Diagnostics Module | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the genuine OEM ComfortAlert control board (part number 1177402) for the Tempstar T2A324GKD100 condensing unit. The ComfortAlert diagnostics module continuously monitors the compressor and system operation, detecting electrical and mechanical faults before they cause a full system failure. It reads compressor current, voltage, and run behavior, then flashes coded alerts that let a technician pinpoint problems such as locked rotor, low voltage, short cycling, or contactor issues. When this board fails you may see the system not responding to thermostat calls, the compressor failing to start, erratic cycling, or no diagnostic LED activity at all. Replacing the board with the correct OEM part restores reliable protection and accurate fault reporting.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\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 Diagnostics 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\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 direct replacement\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-fit replacement for the Tempstar T2A324GKD100 condensing unit. This board is shared across many ICP-family outdoor units (Tempstar, Heil, Comfortmaker, and related Carrier\/Bryant ICP platforms). Always confirm the printed OEM number 1177402 against your existing board before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control panel service cover on the condensing unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring and connector positions before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the low-voltage harness and compressor sense leads, release the board mounting standoffs, and lift out the old board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board on the standoffs and reconnect each harness exactly per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, place a call for cooling, and confirm normal operation and a steady (no-fault) diagnostic LED.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSystem does not respond to thermostat cooling calls\u003c\/li\u003e\n\u003cli\u003eCompressor will not start or short cycles repeatedly\u003c\/li\u003e\n\u003cli\u003eNo diagnostic LED activity or stuck\/erratic fault codes\u003c\/li\u003e\n\u003cli\u003eVisible burn marks, corrosion, or damaged connectors on the board\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\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":63021831160179,"sku":"1177402-GEN","price":142.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048434712947,"sku":"1177402","price":184.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_f796383c-d5f8-45f2-aa82-a1854be4775c.jpg?v=1782959496","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-control-board-for-t2a324gkd100-comfortalert-diagnostics-module-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}