{"product_id":"carrier-c4850c50ay05061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C4850C50AY05061 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C4850C50AY05061\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier C4850C50AY05061\u003c\/strong\u003e packaged heating and cooling system. The transformer steps down line voltage (120V) to the 24V AC signal required by the thermostat, control board, contactor coil, and all low-voltage control circuits. When this component fails, the entire control circuit loses power — the thermostat goes blank, the system won't respond to any commands, and no heating or cooling can be initiated. A failed transformer is often mistaken for a thermostat or control board failure, making it a critical first diagnostic step.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Class 2 transformer | Direct OEM replacement | Part# HT01BD236 | Factory-matched output tolerance for stable low-voltage control signal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM Carrier transformer is wound and insulated to factory specifications, ensuring correct VA capacity under full load. Undersized or generic transformers can brown out under peak demand — triggering nuisance lockouts and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label and photograph all wiring connections before disconnecting. Typical install time: 20–30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eC4850C50AY05061\u003c\/strong\u003e packaged unit. Always verify your existing transformer's VA rating and primary\/secondary voltage on the unit data plate or wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — just reach out before you buy. \u003cstrong\u003eOrder now and get same-day shipping!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909808542067,"sku":"CARRIE-C4850C50AY05061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909808574835,"sku":"CARRIE-C4850C50AY05061-TRANSFORMER-HT01BD236-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BD236_2c2887af-6d37-435d-998b-695b33b06f3f.jpg?v=1782938973","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ay05061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}