{"product_id":"carrier-yac1840yacx101k-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240-24V — YAC1840YACX101K","description":"\u003ch1\u003eOEM Carrier 50VA Control Transformer 120\/208\/240–12\/24V for Model YAC1840YACX101K\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM replacement control transformer (Part # P201-35150) for the \u003cstrong\u003eCarrier YAC1840YACX101K\u003c\/strong\u003e HVAC system. The transformer steps down high-voltage line power (120\/208\/240 VAC) to the safe low-voltage signal (12\/24 VAC) that powers your system's control board, thermostat, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dark — the thermostat loses power, the system won't respond to any call for heating or cooling, and the blower may run continuously or not at all. Replacing the transformer with the correct OEM part restores full system control immediately.\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 OEM transformer is factory-wound to exact VA and voltage tolerances for the Carrier YAC1840YACX101K. Generic transformers often underperform at rated VA, causing nuisance tripping of the internal fuse and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify 24V output after install). Label all wiring before removal. Replace the inline 3A fuse on the secondary circuit if it has blown.\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 direct OEM replacement for \u003cstrong\u003eCarrier model YAC1840YACX101K\u003c\/strong\u003e. Verify your existing transformer's VA rating and primary\/secondary voltages against your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640215359859,"sku":"CARRIE-YAC1840YACX101K-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640215392627,"sku":"CARRIE-YAC1840YACX101K-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_288ceab4-dcff-4ed1-8623-2b0b6644e06e.jpg?v=1782942954","url":"https:\/\/nationalhvacparts.com\/products\/carrier-yac1840yacx101k-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}