{"product_id":"carrier-c4850c50aw02061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C4850C50AW02061 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V–24V for Model C4850C50AW02061\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50AW02061\u003c\/strong\u003e packaged unit. The transformer steps line voltage down from 120V to 24V to power the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When it fails, nothing responds: the thermostat goes blank, the system won't energize, and you may find a blown fuse on the control board. Replacing the transformer is one of the fastest ways to restore full system operation after a control circuit failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | OEM part number HT01BD236 | Factory-matched output voltage tolerance for stable control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and tested to Carrier's exact VA and voltage specifications. Generic transformers frequently under-deliver on VA capacity, causing nuisance fuse failures and erratic thermostat behavior under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdriver, multimeter, wire nuts or spade connectors. Verify fuse integrity on the control board before energizing — a shorted load can blow a new transformer immediately if the root cause isn't addressed first.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for \u003cstrong\u003eCarrier C4850C50AW02061\u003c\/strong\u003e packaged units. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909824106867,"sku":"CARRIE-C4850C50AW02061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909824139635,"sku":"CARRIE-C4850C50AW02061-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_c0e9e25c-e37f-4b24-8754-9076b47fa327.jpg?v=1782938893","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aw02061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}