{"product_id":"tempstar-40va-transformer-for-t9uhx060f12a2-115v-to-24v-control-ships-today","title":"Tempstar 40VA Transformer for T9UHX060F12A2 — 115V to 24V Control | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM 40VA control transformer (ICP\/Tempstar part #1172810) powers the low-voltage control circuit on the Tempstar T9UHX060F12A2 gas furnace. It steps the 115V line voltage down to the 24V needed by the thermostat, control board, gas valve, and ignition system. A 40VA rating provides ample current for the furnace's control loads. When a transformer fails — usually from a control-circuit short, a shorted gas valve, or simple age — the entire 24V system goes dead: the thermostat blanks out, the blower and ignition won't energize, and the furnace will not respond to a call for heat. Installing this exact-replacement transformer restores full control power.\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\u003e1172810\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40VA\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\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt for the Tempstar T9UHX060F12A2 gas furnace and shared across ICP-family units (Tempstar, Heil, Comfortmaker, Arcoaire) using a 40VA 115\/24V control transformer. Verify your existing transformer's primary and secondary voltages 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 furnace switch and breaker; verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/blower compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every primary and secondary wire connection before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the leads, then unbolt the failed transformer from its mounting bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and reconnect the 115V primary and 24V secondary leads exactly per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, confirm 24V at the secondary with a multimeter, and verify the thermostat and ignition sequence operate.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThermostat display is blank with no 24V power\u003c\/li\u003e\n\u003cli\u003eFurnace does not respond to a heat call\u003c\/li\u003e\n\u003cli\u003eNo measurable 24V at the transformer secondary\u003c\/li\u003e\n\u003cli\u003eTransformer is hot, buzzing, or shows scorch marks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day on orders placed 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":63021677183347,"sku":"1172810-GEN","price":24.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048408662387,"sku":"1172810","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1172810_80bc1de7-e950-42d4-ae4d-249b7d4e5892.jpg?v=1782958457","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-40va-transformer-for-t9uhx060f12a2-115v-to-24v-control-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}