{"product_id":"carrier-c4850c50z3075610-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50Z3075610 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C4850C50Z3075610\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier C4850C50Z3075610\u003c\/strong\u003e packaged heating and cooling system. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, control board, contactor coil, and all low-voltage control circuits. When the transformer fails, the entire control system goes dark — the thermostat becomes unresponsive, the system will not heat or cool, and no error codes will appear because there is no power to generate them.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Direct drop-in replacement with factory-matched mounting footprint and terminal configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA tolerances, protecting downstream components like the control board and contactor coil from voltage fluctuations. Generic transformers may underperform under full load, causing nuisance lockouts, premature contactor failure, or control board damage — far more expensive repairs.\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 proceeding. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Photograph existing wiring before disconnecting. Verify incoming voltage with a multimeter before condemning the transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered by 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eC4850C50Z3075610\u003c\/strong\u003e packaged unit. Confirm your existing transformer's VA rating and primary\/secondary voltage on the data plate or component label before ordering. If you are unsure of fitment, our HVAC parts specialists verify compatibility before your order ships — no guesswork, no return hassle.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909787636083,"sku":"CARRIE-C4850C50Z3075610-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909787668851,"sku":"CARRIE-C4850C50Z3075610-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_6cc5bb62-e87e-4611-be1e-293454abd7a9.jpg?v=1782899189","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50z3075610-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}