{"product_id":"carrier-c4850c50z2030600-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C4850C50Z2030600 — Ships Today","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model C4850C50Z2030600\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier C4850C50Z2030600\u003c\/strong\u003e packaged unit. The transformer converts 120V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage control circuits. When this component fails, the entire control circuit goes dead — your thermostat will display nothing or fail to communicate, and the unit will not respond to any heating or cooling calls regardless of other component condition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V AC | Secondary voltage: 24V AC | VA rating: 40VA | OEM part number: HT01BD236 | Factory-matched output tolerance for stable low-voltage operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to Carrier's exact VA and voltage specifications, ensuring consistent 24V output under load. Generic transformers often deliver unstable voltage under peak demand, causing nuisance lockouts, erratic thermostat behavior, 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 servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Verify incoming and outgoing voltages with a multimeter after installation before restoring the system to full operation.\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 Designed for the Carrier \u003cstrong\u003eC4850C50Z2030600\u003c\/strong\u003e packaged unit. Verify your existing transformer's primary\/secondary voltage and VA rating on the unit's data plate or wiring diagram before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909806674291,"sku":"CARRIE-C4850C50Z2030600-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909806707059,"sku":"CARRIE-C4850C50Z2030600-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_857f4f60-841c-4510-87d9-7600aa6962c9.jpg?v=1782938980","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50z2030600-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}