{"product_id":"carrier-upflow100fauhac14a-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240-24V — UPFLOW100FAUHAC14A","description":"\u003ch1\u003eOEM Carrier Control Transformer 50VA 120\/208\/240–12\/24V for Model UPFLOW100FAUHAC14A\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement transformer (part #P201-35150) for the \u003cstrong\u003eCarrier UPFLOW100FAUHAC14A\u003c\/strong\u003e upflow air handler. The transformer steps down incoming line voltage (120\/208\/240 VAC) to safe low-voltage output (12\/24 VAC) to power the system's control board, thermostat circuit, and all low-voltage accessories. When the transformer fails, the entire control circuit goes dead — symptoms include a completely unresponsive thermostat, a system that won't call for heating or cooling, or a tripped low-voltage fuse caused by a shorted secondary winding.\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 | Factory part #P201-35150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact Carrier factory tolerances, ensuring stable 24V output under full load. Generic transformers often under-rate their VA capacity, causing thermal shutdowns and nuisance tripped fuses under normal system demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power at the breaker and verify zero voltage before disconnecting wiring. Label all low-voltage leads before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Confirm secondary output voltage after installation before restoring full system power.\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 Factory-specified for the Carrier \u003cstrong\u003eUPFLOW100FAUHAC14A\u003c\/strong\u003e upflow air handler. Verify your unit's primary voltage configuration (120V vs. 208\/240V) against the transformer's multi-tap primary wiring before installation. Questions about fitment? Our HVAC parts team is available to verify compatibility before you order — get the right part the first time.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640237183347,"sku":"CARRIE-UPFLOW100FAUHAC14A-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640237216115,"sku":"CARRIE-UPFLOW100FAUHAC14A-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_856d6606-7ee2-463e-8bb9-88d1345770a8.jpg?v=1782942927","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow100fauhac14a-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}