{"product_id":"carrier-c4850c50z2070600-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50Z2070600 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C4850C50Z2070600\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier C4850C50Z2070600\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to 24V AC to power the entire low-voltage control circuit — including the thermostat, contactor coil, gas valve, and control board. When this part fails, the entire system goes silent: the thermostat shows no response, and no heating or cooling operation is possible. It is often the first component to check when the system appears completely dead with no low-voltage activity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Class 2 transformer | OEM part number HT01BD236 | Designed to factory tolerance for the Carrier C4850C50Z2070600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound and rated to exact Carrier factory specifications. Generic transformers frequently carry undersized VA ratings that cause overheating under peak load, tripping built-in fuses and shortening the lifespan of downstream control components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Always verify 24V output at secondary terminals after installation before restoring system power. Label or photograph wiring connections prior to removal.\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 stocked warehouse — order by 3PM local time for guaranteed same-day dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eC4850C50Z2070600\u003c\/strong\u003e packaged unit. Verify primary voltage on your unit's data plate before ordering — some configurations may use 208\/240V primary transformers. If you are unsure of fitment, our parts specialists confirm compatibility before you purchase. In stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909800481139,"sku":"CARRIE-C4850C50Z2070600-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909800513907,"sku":"CARRIE-C4850C50Z2070600-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_1616256e-e038-43ba-8cfd-f8be40ce77ed.jpg?v=1782899162","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50z2070600-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}