{"product_id":"carrier-yac3680yac407c-transformer-fnyqxl","title":"OEM Carrier 50VA Transformer 120\/240–24V P201-35150 for YAC3680YAC407C","description":"\u003ch1\u003eOEM Carrier 50VA Control Transformer P201-35150 for Model YAC3680YAC407C\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier YAC3680YAC407C\u003c\/strong\u003e HVAC unit. It converts high-voltage line power (120\/208\/240 VAC) down to safe 12\/24 VAC to energize the control board, thermostat wiring, and all low-voltage system circuits. When this transformer fails, the entire control circuit goes dark — the thermostat becomes unresponsive, the system will not start, and no call for heating or cooling can be processed. Replacing a failed transformer is one of the most impactful single-part repairs you can make to restore full system operation.\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 | Part # P201-35150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier\/Totaline factory-authorized transformer built to exact VA and voltage tolerances. Generic transformers often deviate in VA rating, causing nuisance tripping, control board undervoltage faults, or premature burnout of downstream components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires shutting off power at the disconnect and breaker before work begins. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wiring before disconnecting. Confirm primary voltage tap matches your supply voltage (120V or 240V).\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 Carrier model \u003cstrong\u003eYAC3680YAC407C\u003c\/strong\u003e. Also cross-references Totaline P201-35150. Verify your existing transformer's VA rating and primary voltage configuration on the data plate before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before every order — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640194388339,"sku":"CARRIE-YAC3680YAC407C-TRANSFORMER-P201-35150","price":119.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640194421107,"sku":"CARRIE-YAC3680YAC407C-TRANSFORMER-P201-35150-GEN","price":105.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-P201-35150_f5f06603-466a-41ed-a8d0-08b4eae95ed3.jpg?v=1775016714","url":"https:\/\/nationalhvacparts.com\/products\/carrier-yac3680yac407c-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}