{"product_id":"tempstar-40va-transformer-for-tca960gka200-208-230v-to-24v-ships-today","title":"Tempstar 40VA Transformer for TCA960GKA200 — 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM control transformer (part number 1170676) supplies the 24-volt control power for the Tempstar TCA960GKA200. It steps the incoming 208\/230V line voltage down to 24V and delivers up to 40VA — enough to energize the contactor coil, control board, and low-voltage circuit. The transformer is the heart of the control circuit: without it, the thermostat and contactor have no power and the unit will not respond to a call for cooling. A burned-out or shorted transformer typically results from a control-side short or a stuck contactor drawing excessive current. Symptoms include a completely dead control circuit, a tripped low-voltage fuse, or a faint burnt smell from the control box. Replacing it restores stable 24V power across 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\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\u003e40VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCA960GKA200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eA direct-fit OEM replacement for the Tempstar TCA960GKA200. The 1170676 transformer is used across equivalent ICP-family equipment — Tempstar, Heil, Comfortmaker, Arcoaire, and ICP — running a 208\/230V primary and 24V\/40VA secondary. Confirm the primary\/secondary voltages and VA rating against your existing transformer 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 disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to expose the control box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the primary and secondary wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the primary (line) and secondary (24V) leads, then unbolt the transformer from the mounting bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, matching the primary tap to your incoming voltage, and reconnect the secondary leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24V across the secondary terminals with a multimeter.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo 24V at the thermostat or contactor coil.\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse.\u003c\/li\u003e\n\u003cli\u003eBurnt smell or discoloration on the transformer housing.\u003c\/li\u003e\n\u003cli\u003eControl circuit completely dead with line voltage present.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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":63021659849075,"sku":"1170676-GEN","price":28.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048409350515,"sku":"1170676","price":36.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1170676_6437421a-bb55-44d7-91ed-ac670ad13dc9.jpg?v=1782958485","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-40va-transformer-for-tca960gka200-208-230v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}