{"product_id":"carrier-upflow150fauhac14a-transformer-fnyqxl","title":"OEM Carrier Transformer 40VA 120V–24V for UPFLOW150FAUHAC14A","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model UPFLOW150FAUHAC14A\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eP201-35150\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier UPFLOW150FAUHAC14A\u003c\/strong\u003e upflow air handler. The transformer steps down line voltage (120V) to the 24V AC signal that powers your thermostat, control board, and all low-voltage switching circuits. When the transformer fails, the entire control circuit goes dead — the thermostat goes blank, the blower won't respond to calls for heating or cooling, and no diagnostic codes will display. It is one of the first components to check during a no-response service call.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input: 120V AC | Output: 24V AC | VA Rating: 40VA | Form factor: chassis-mount | Terminal connections: wire leads | Factory-matched to OEM tolerances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit (P201-35150) is built to Carrier's exact VA rating and insulation class, ensuring stable 24V output under full control-circuit load. Generic transformers can drift under load, causing nuisance lockouts, board resets, or premature contactor failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off unit power at the disconnect and breaker before proceeding. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, wire nuts. Verify output voltage (should read 24–28V AC) before reconnecting the control board. Photograph all wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eUPFLOW150FAUHAC14A\u003c\/strong\u003e upflow air handler. Confirm input voltage and VA rating on your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640226828659,"sku":"CARRIE-UPFLOW150FAUHAC14A-TRANSFORMER-P201-35150","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640226861427,"sku":"CARRIE-UPFLOW150FAUHAC14A-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_e7c08aa8-1252-447e-97be-57a77a312054.jpg?v=1775041442","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow150fauhac14a-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}