{"product_id":"tempstar-40va-transformer-for-tca948gka200-208-230v-to-24v-ships-today","title":"Tempstar 40VA Transformer for TCA948GKA200 – 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 TCA948GKA200. It steps 208\/230V line voltage down to 24V at 40VA, energizing the contactor coil, pressure switches, and control circuit. The transformer is the foundation of the control system — when it fails, the contactor will not pull in, the unit appears completely dead, and no cooling occurs even with line voltage present. The 40VA rating gives 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 TCA948GKA200. The 1170676 transformer is used across numerous ICP\/Heil-built condensers and heat pumps 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":63021660111219,"sku":"1170676-GEN","price":24.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048409252211,"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_1eae83d0-388a-4335-b6e5-2f28140b42e1.jpg?v=1782958480","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-40va-transformer-for-tca948gka200-208-230v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}