{"product_id":"carrier-upflow120fauhc12-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240-24V for UPFLOW120FAUHC12","description":"\u003ch1\u003eOEM Carrier 50VA Control Transformer P201-35150 for Model UPFLOW120FAUHC12\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier UPFLOW120FAUHC12\u003c\/strong\u003e upflow gas furnace. The transformer steps down 120\/208\/240V line voltage to a safe 12\/24V output to power the furnace's control board, thermostat, and all low-voltage control circuits. When this transformer fails, the entire control circuit loses power — resulting in a completely unresponsive thermostat, a furnace that won't start, or control board fault codes with no apparent cause. Replacing it with the correct OEM part restores factory-spec voltage regulation and protects downstream electronics from damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 50VA rating | Primary: 120\/208\/240 VAC | Secondary: 12\/24 VAC | 60 Hz | Single phase | CSA listed | OEM Part # P201-35150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier\/Totaline factory-authorized transformer. OEM units are wound to exact VA and voltage tolerances, protecting sensitive control boards. Generic transformers may run hot, sag under load, or produce voltage outside spec — shortening the life of your IFC board and thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify output voltage after install). Document or photograph existing wiring before disconnecting. Match wire-for-wire on reinstall.\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 Designed for the Carrier \u003cstrong\u003eUPFLOW120FAUHC12\u003c\/strong\u003e upflow gas furnace. Verify your existing transformer's VA rating and primary\/secondary voltages against your unit's data plate before ordering. Need fitment help? Our HVAC parts specialists confirm compatibility before you buy — contact us today and get your furnace back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640234955123,"sku":"CARRIE-UPFLOW120FAUHC12-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640234987891,"sku":"CARRIE-UPFLOW120FAUHC12-TRANSFORMER-P201-35150-GEN","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-P201-35150_bd69014e-e9aa-4352-a00e-9056d4d61cd2.jpg?v=1782942860","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow120fauhc12-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}