{"product_id":"carrier-c4850c48ay06051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V-24V for C4850C48AY06051","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C4850C48AY06051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier C4850C48AY06051\u003c\/strong\u003e packaged system. The transformer steps down line voltage from 120V to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When it fails, the entire control system goes dark — the thermostat loses power, the system stops responding to calls for heating or cooling, and you may blow a low-voltage fuse repeatedly. A failed transformer is one of the most common causes of a completely unresponsive HVAC system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V AC | Factory OEM part number HT01BD236 | Direct plug-and-play replacement for Carrier C4850C48AY06051\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM transformer is wound to exact VA and voltage specifications. Generic units often run under-rated VA capacity, causing them to overheat under full control-circuit load and fail prematurely — taking other components with them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and disconnect the unit before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Label and photograph all low-voltage wiring connections before removal. Verify 24V output at secondary terminals with a multimeter before reassembling.\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 HVAC parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier C4850C48AY06051\u003c\/strong\u003e packaged unit. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. If you're unsure of fitment, our parts team is available to confirm compatibility before you purchase — we want to get it right the first time.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909872832883,"sku":"CARRIE-C4850C48AY06051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909872865651,"sku":"CARRIE-C4850C48AY06051-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_179ac670-6d42-4522-bd4f-a3126c2c4ba5.jpg?v=1782939273","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48ay06051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}