{"product_id":"carrier-upflow100uaac14a-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240-24V for UPFLOW100UAAC14A","description":"\u003ch1\u003eOEM Carrier Control Transformer 50VA 120\/240-24V for Model UPFLOW100UAAC14A\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM step-down control transformer for the \u003cstrong\u003eCarrier UPFLOW100UAAC14A\u003c\/strong\u003e air handler. The transformer converts incoming line voltage (120\/208\/240 VAC) to a safe 24 VAC output that powers the low-voltage control circuit — including the thermostat, control board, and all 24V relay coils. When this transformer fails, the entire control circuit loses power: the thermostat goes blank, the system won't respond to any call for heating or cooling, and in some cases a blown fuse on the control board is a secondary symptom of transformer burnout.\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 # P201-35150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the factory-authorized OEM part manufactured to exact Carrier specifications. Generic 50VA transformers may have looser voltage tolerances, inferior core lamination, and non-CSA listings — all of which risk nuisance tripping or early failure of downstream control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output post-install). Note wire colors and terminal positions before disconnecting. This is a direct swap replacement.\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 as the factory replacement for the Carrier \u003cstrong\u003eUPFLOW100UAAC14A\u003c\/strong\u003e air handler. Verify your unit's data plate shows a 50VA \/ 120-240V primary \/ 24V secondary transformer requirement before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640235905395,"sku":"CARRIE-UPFLOW100UAAC14A-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640235938163,"sku":"CARRIE-UPFLOW100UAAC14A-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_c6d2926b-91be-45d2-8480-e01d981c9583.jpg?v=1782942858","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow100uaac14a-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}