{"product_id":"carrier-c48a206051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C48A206051 (HT01BD236) | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model C48A206051\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 C48A206051\u003c\/strong\u003e packaged unit. The transformer converts 120V line voltage to the 24V signal required to power your thermostat, control board, and all low-voltage control circuits. When this part fails, nothing works — the thermostat goes blank, the system will not respond to any call for heating or cooling, and no fault codes will appear because the control board itself has lost power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Class 2 transformer | Factory-matched OEM tolerances for reliable low-voltage output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD236 transformer is wound and rated to Carrier's exact specifications, ensuring consistent 24V output under load. Generic alternatives frequently exhibit voltage sag under full control-circuit load, causing intermittent lockouts and nuisance trips on sensitive boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify with a voltage meter before handling. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all low-voltage wiring connections before removal to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier C48A206051\u003c\/strong\u003e packaged unit. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering. If you are unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you purchase. Order today for same-day shipping and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909757292915,"sku":"CARRIE-C48A206051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909757325683,"sku":"CARRIE-C48A206051-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_1c603ee6-930f-4cba-911f-3ea3624f3c9a.jpg?v=1782939141","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a206051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}