{"product_id":"tempstar-24v-transformer-for-txh224akc1-40va-control-power-ships-today","title":"Tempstar 24V Transformer for TXH224AKC1 — 40VA Control Power | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM 24V control transformer supplies low-voltage power to the contactor coil, reversing-valve solenoid, and control circuitry on the Tempstar TXH224AKC1 heat pump. It steps line voltage down to a stable 24VAC at 40VA. When a transformer fails, the entire low-voltage control circuit goes dead: the contactor will not pull in, the reversing valve will not energize, and the system will not start. Common failures come from a shorted control wire, a seized contactor coil drawing excess current, or simple age-related winding breakdown. OEM part references for this assembly include 1172619 and 1172617.\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 Numbers\u003c\/td\u003e\n\u003ctd\u003e1172619, 1172617\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl Transformer \/ 24V Coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar\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\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered as a direct-fit replacement for the Tempstar TXH224AKC1 and shared ICP\/Heil platform heat-pump models that use the same 24V control architecture. Always confirm the printed part number on your existing component 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 disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the unit's electrical service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary and secondary leads before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unscrew the transformer mounting bracket and disconnect the primary and 24V secondary leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, reconnect leads exactly per your photo, and secure the bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24VAC across the secondary terminals.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo 24V power at the contactor or control board.\u003c\/li\u003e\n\u003cli\u003eSystem completely unresponsive at the thermostat.\u003c\/li\u003e\n\u003cli\u003eBurnt smell or visibly scorched transformer body.\u003c\/li\u003e\n\u003cli\u003eRepeated blown low-voltage fuse after reset.\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":63021626229107,"sku":"1172619-GEN","price":34.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048397881715,"sku":"1172619","price":44.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1172619_f4b262d5-11b1-4d25-8680-065f18573985.jpg?v=1782958092","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-24v-transformer-for-txh224akc1-40va-control-power-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}