{"product_id":"carrier-c4850c50z7105610-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C4850C50Z7105610 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C4850C50Z7105610\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control transformer for the \u003cstrong\u003eCarrier C4850C50Z7105610\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V AC signal required to power the control board, thermostat, and all low-voltage components. When this part fails, the entire control circuit goes dead — the thermostat goes blank, the system will not respond to any commands, and nothing operates. A failed transformer is often misdiagnosed as a thermostat or board failure, making this an essential first diagnostic check.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | OEM part number HT01BD236 | Factory-matched electrical ratings for Carrier C4850C50Z7105610\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer built to exact factory tolerances. Generic transformers may deliver inconsistent secondary voltage, causing erratic board behavior, nuisance lockouts, or premature control board failure — costing far more in the long run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Confirm secondary voltage (should read ~24–28V AC) after install before restoring the system to operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty included. Orders placed by 3 PM EST ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eC4850C50Z7105610\u003c\/strong\u003e packaged unit. Always verify primary voltage requirements on your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909785473395,"sku":"CARRIE-C4850C50Z7105610-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909785506163,"sku":"CARRIE-C4850C50Z7105610-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_9373f497-b058-4bf8-a0f7-cf20ce38139a.jpg?v=1782939038","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50z7105610-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}