{"product_id":"tempstar-comfort-alert-control-board-for-t4a330gka200-oem-1177402-ships-today","title":"Tempstar Comfort Alert Control Board for T4A330GKA200 — OEM 1177402 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM Comfort Alert control board (part number 1177402) for the Tempstar T4A330GKA200 condensing unit. The Comfort Alert module is a compressor diagnostic and protection board that continuously monitors the compressor's electrical signature — voltage, current draw, and run\/start behavior — to detect faults before they cause a failure. It flashes coded LED signals for conditions such as locked rotor, open circuit, low\/high voltage, short cycling, welded contactor, and missing run capacitor, giving technicians fast, accurate diagnostics. When this board fails, you may see no diagnostic LEDs, a compressor that won't start or trips repeatedly, or erratic protective shutdowns. Replacing the board restores the unit's built-in monitoring and helps safeguard the compressor — by far the most expensive component in the system.\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\u003eComfort Alert Diagnostic Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP \/ Heil family)\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\u003eCoded status LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\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\u003eDesigned as a direct-fit replacement for the Tempstar T4A330GKA200 air conditioner. The 1177402 Comfort Alert board is used across many ICP-built outdoor units (Tempstar, Heil, Comfortmaker, Arcoaire). Verify the existing board's part number and connector layout 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, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the electrical access panel on the condensing unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring and connector positions before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the low-voltage harness and sense leads, then unsnap or unscrew the board from its standoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new board, reconnect each harness to the matching terminal per your photo, and seat connectors fully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and confirm the diagnostic LED illuminates and the compressor starts normally.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo status LED or stuck\/garbled fault codes\u003c\/li\u003e\n\u003cli\u003eCompressor won't start or short cycles with no clear cause\u003c\/li\u003e\n\u003cli\u003eRandom nuisance protective shutdowns\u003c\/li\u003e\n\u003cli\u003eBoard shows burnt traces, swollen components, or corrosion\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 hassle-free returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021812679027,"sku":"1177402-GEN","price":144.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048415641971,"sku":"1177402","price":188.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-1177402_6b9a1416-5c9b-49f0-b522-84b726d82789.jpg?v=1782958672","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-comfort-alert-control-board-for-t4a330gka200-oem-1177402-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}