{"product_id":"tempstar-transformer-for-tca760gka100-40va-208-230v-to-24v-ships-today","title":"Tempstar Transformer for TCA760GKA100 — 40VA 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM control transformer (part number 1170676) supplies low-voltage power for the Tempstar TCA760GKA100. It steps the 208\/230-volt line voltage down to 24 volts at 40 VA to drive the contactor coil, control board, safety switches, and thermostat circuit. The transformer is the heart of the control system — when it fails, the entire low-voltage side goes dead. Typical failure symptoms include a completely unresponsive unit, a thermostat with no power, a contactor that won't pull in, or a transformer that has overheated, buzzed, or burned open after a control-side short. A 40 VA rating provides ample capacity for the unit's control loads. Replacing it with the correct OEM 208\/230-to-24V transformer restores stable control voltage and reliable operation.\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\u003e1170676\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStep-Down Control Transformer\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\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e208\/230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCA760GKA100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt as the factory replacement for the Tempstar TCA760GKA100 condensing unit. The identical 40VA 208\/230-to-24V transformer is shared across matching ICP, Heil, and Comfortmaker condensers on this platform. Confirm VA rating, primary taps, and secondary voltage against your original part before installing.\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 breaker and disconnect, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to reach the control compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the primary and secondary lead connections before removing anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the line-voltage primary leads and 24V secondary leads, then unbolt the transformer from its bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and reconnect each lead per your photo, matching the correct primary tap for your supply voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24V at the secondary and proper control operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo power to the thermostat or control board.\u003c\/li\u003e\n\u003cli\u003eContactor will not energize on a cooling call.\u003c\/li\u003e\n\u003cli\u003eBurnt smell, buzzing, or discolored transformer housing.\u003c\/li\u003e\n\u003cli\u003eNo 24V reading at the secondary terminals.\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 hassle-free returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021661094259,"sku":"1170676-GEN","price":26.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048490942835,"sku":"1170676","price":35.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1170676_d9e3d61b-f18b-4113-9600-c762e4f49d6f.jpg?v=1782961456","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-transformer-for-tca760gka100-40va-208-230v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}