{"product_id":"carrier-yac60140yacx401ac-transformer-fnyqxl","title":"OEM Carrier Transformer 40VA 120V→24V for YAC60140YACX401AC","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model YAC60140YACX401AC\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer (part number \u003cstrong\u003eP201-35150\u003c\/strong\u003e) is the factory-specified replacement for \u003cstrong\u003eCarrier YAC60140YACX401AC\u003c\/strong\u003e systems. The transformer converts 120V line voltage down to 24V to power the low-voltage control circuit — including the thermostat, contactors, and all 24V control board signals. When it fails, the entire control circuit goes dead: the thermostat loses power, the system won't respond to calls for heating or cooling, and no safety fuses are tripped. A failed transformer is one of the most commonly misdiagnosed HVAC faults.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary | 24V secondary | 40VA rating | Class 2 transformer | Factory-matched OEM tolerances for reliable low-voltage control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound and rated to exact Carrier factory specifications, ensuring stable 24V output under full control-circuit load. Generic transformers often have looser VA tolerances, risking brownout conditions that can cause nuisance lockouts or board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Turn off power at the breaker and confirm zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, wire strippers, multimeter, wire nuts or spade connectors. Photograph all wiring connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Carrier model \u003cstrong\u003eYAC60140YACX401AC\u003c\/strong\u003e. Always verify primary voltage (120V), secondary voltage (24V), and VA rating on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you place your order — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640182722931,"sku":"CARRIE-YAC60140YACX401AC-TRANSFORMER-P201-35150","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640182755699,"sku":"CARRIE-YAC60140YACX401AC-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_2a623a06-ca31-4f4d-9f27-d33d1655902b.jpg?v=1775041478","url":"https:\/\/nationalhvacparts.com\/products\/carrier-yac60140yacx401ac-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}