{"product_id":"carrier-upflow120hcu-12-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240V–24V for UPFLOW120HCU%12","description":"\u003ch1\u003eOEM Carrier 50VA Control Circuit Transformer P201-35150 for Model UPFLOW120HCU%12\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM step-down transformer for the \u003cstrong\u003eCarrier UPFLOW120HCU%12\u003c\/strong\u003e upflow gas furnace. The transformer converts incoming line voltage (120\/208\/240 VAC) down to a safe 12\/24 VAC to power the furnace's control board, thermostat, and all low-voltage control circuit devices. When this transformer fails, the entire control circuit loses power — symptoms include a completely unresponsive thermostat, no inducer startup, and full system lockout with no error codes displayed. Replacing the transformer is one of the first diagnostic steps when the furnace shows zero signs of life despite confirmed line voltage at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 50 VA rating | Primary: 120\/208\/240 VAC | Secondary: 12\/24 VAC | 60 Hz single-phase | CSA listed | OEM part number P201-35150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory Carrier\/Totaline OEM transformer is wound and rated to exact VA and voltage tolerances. Generic substitutes often run at lower VA ratings, causing nuisance tripping on the internal thermal overload and premature control board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire nuts or spade connectors. Photograph all low-voltage wiring before disconnecting. Confirm secondary voltage output (24 VAC ±10%) with a multimeter after installation.\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 Direct OEM replacement for \u003cstrong\u003eCarrier UPFLOW120HCU%12\u003c\/strong\u003e upflow furnaces. Verify your unit's data plate primary voltage configuration (120V or 240V tap) before wiring. This transformer supports both voltage inputs, making it suitable across multi-voltage installations. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640234660211,"sku":"CARRIE-UPFLOW120HCU%12-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640234692979,"sku":"CARRIE-UPFLOW120HCU%12-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_d05501b3-031d-47d5-8e07-6773a7d8b90d.jpg?v=1782942974","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow120hcu-12-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}