{"product_id":"carrier-upflow125fauac14-transformer-fnyqxl","title":"OEM Carrier 40VA Transformer 120V-24V for UPFLOW125FAUAC14","description":"\u003ch1\u003eOEM Carrier 40VA Control Circuit Transformer for Model UPFLOW125FAUAC14\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified replacement transformer (part number \u003cstrong\u003eP201-35150\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier UPFLOW125FAUAC14\u003c\/strong\u003e upflow gas furnace. The transformer steps down line voltage from 120V to 24V to power the low-voltage control circuit — including your thermostat, control board, gas valve, and safety switches. When this component fails, the entire control circuit goes dark: your thermostat shows no response, the furnace won't initiate a heating cycle, and diagnostic LEDs on the control board may fail to illuminate at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120VAC | Output 24VAC | 40VA rating | Class 2 transformer | Factory-matched for Carrier UPFLOW125FAUAC14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact factory VA and voltage specifications, ensuring stable 24V output under full control-circuit load. Generic transformers often run under-rated VA, causing voltage sag that trips safeties or damages the control board over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Label or photograph all wiring connections before removal. Confirm 24V output with a multimeter after installation before closing the access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered and tested specifically for the \u003cstrong\u003eCarrier UPFLOW125FAUAC14\u003c\/strong\u003e upflow furnace. Always verify the part number on your existing transformer's label before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — contact us today and get your system back up fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640231711091,"sku":"CARRIE-UPFLOW125FAUAC14-TRANSFORMER-P201-35150","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640231743859,"sku":"CARRIE-UPFLOW125FAUAC14-TRANSFORMER-P201-35150-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-P201-35150_808d6f10-406a-4f36-9985-64a709c7bc86.jpg?v=1775016295","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow125fauac14-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}