{"product_id":"carrier-yac-48-140yac-104c-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240–24V for 48\/140YAC-104C","description":"\u003ch1\u003eOEM Carrier 50VA Control Transformer P201-35150 for Model 48\/140YAC-104C\u003c\/h1\u003e\u003cp\u003eThe Carrier P201-35150 is the factory-specified step-down control transformer for the \u003cstrong\u003eCarrier 48\/140YAC-104C\u003c\/strong\u003e packaged unit. Its job is to reduce incoming line voltage (120\/208\/240V AC) down to a safe 12\/24V AC to power the system's control board, thermostat, and low-voltage accessories. When this transformer fails, the entire control circuit goes dark — thermostats lose power, the system won't respond to calls for heating or cooling, and nothing turns on. It is often misdiagnosed as a failed control board, making correct identification critical before replacing costlier components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 50VA | Primary: 120\/208\/240V AC | Secondary: 12\/24V AC | 60 Hz | Single-phase | CSA listed | Approx. dimensions: 3.8\"L × 3.1\"W × 2.2\"H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier\/Totaline OEM part (P201-35150), manufactured to factory voltage and VA tolerances. Generic transformers may run underrated VA, causing premature thermal cutout and repeated control circuit failures — particularly under summer peak-load conditions on packaged rooftop units like the 48\/140YAC-104C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label and photograph all low-voltage wiring before disconnecting. Mount securely to avoid vibration-induced terminal fatigue.\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 for the \u003cstrong\u003eCarrier 48\/140YAC-104C\u003c\/strong\u003e packaged unit. Verify your unit's data plate primary voltage configuration (120V, 208V, or 240V) before ordering — this transformer supports all three primary voltages. Questions about fitment? Our HVAC parts specialists verify compatibility before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640187015539,"sku":"CARRIE-YAC:48\/140YAC-104C–-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640187048307,"sku":"CARRIE-YAC:48\/140YAC-104C–-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-TRANSFORMER-P201-35150.jpg?v=1782942986","url":"https:\/\/nationalhvacparts.com\/products\/carrier-yac-48-140yac-104c-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}