{"product_id":"tempstar-40va-transformer-for-tca960gka100-208-230v-to-24v-ships-today","title":"Tempstar 40VA Transformer for TCA960GKA100 – 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis genuine OEM control transformer (part number 1170676) supplies the 24V low-voltage power for the Tempstar TCA960GKA100. It steps 208\/230V line voltage down to 24V at 40VA, energizing the contactor coil, pressure switches, and control circuit. The transformer is the heart of the control system — when it fails, the contactor will not pull in, the unit appears completely dead, and no cooling occurs even though line voltage is present. A 40VA rating provides ample headroom for the unit's control loads. Replacing a burned-out or shorted transformer with the exact OEM part restores correct control voltage and reliable operation.\u003c\/p\u003e\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\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\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e208\/230V\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\u003e40 VA\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eA direct factory replacement for the Tempstar TCA960GKA100. The 1170676 transformer is shared across numerous ICP\/Heil-built condensers and heat pumps sold under the Tempstar, Heil, Comfortmaker, and related brands using a 208\/230V to 24V 40VA control supply. Verify your existing transformer's voltage and VA rating before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\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 condenser service panel to reach the control box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph all primary (line) and secondary (24V) lead connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Disconnect the primary and secondary leads and unbolt the transformer from its mounting bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new 1170676 transformer, matching primary leads to 208\/230V and secondary to the 24V circuit per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power and confirm 24V across the secondary and that the contactor energizes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo 24V control voltage at the secondary terminals\u003c\/li\u003e\n\u003cli\u003eContactor will not pull in and the unit appears dead\u003c\/li\u003e\n\u003cli\u003eBurnt smell, scorched windings, or melted housing\u003c\/li\u003e\n\u003cli\u003eRepeated blown low-voltage fuse traced to a shorted transformer\u003c\/li\u003e\n\u003c\/ul\u003e\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":63021660012915,"sku":"1170676-GEN","price":24.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048409317747,"sku":"1170676","price":31.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1170676_f7238c7d-fe6a-439d-bcb1-f814c8ac4b6b.jpg?v=1782958483","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-40va-transformer-for-tca960gka100-208-230v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}