{"product_id":"carrier-c50a303561-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A303561","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C50A303561\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C50A303561\u003c\/strong\u003e commercial rooftop unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, contactor coils, gas valve, and control board. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, nothing responds, and the system will not operate in any mode. It is often the first component to inspect when a unit shows absolutely no control activity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched for exact fit and VA load capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to Carrier's exact VA rating and insulation class, ensuring stable 24V output under full control circuit load. Undersized generic transformers can overheat, trip their internal breaker, or fail prematurely when multiple components draw simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all wire connections before removal. Verify 24V output with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed by 3PM local time ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier C50A303561\u003c\/strong\u003e commercial rooftop packaged unit. Confirm your existing transformer's VA rating and primary\/secondary voltages on the unit's wiring diagram or data plate before ordering. Our fitment team is available to verify compatibility prior to purchase — same-day shipping ensures minimal downtime on commercial equipment.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909697065331,"sku":"CARRIE-C50A303561-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909697098099,"sku":"CARRIE-C50A303561-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_bb4eaa5d-798a-4ad3-99c7-39b443526aa3.jpg?v=1782940448","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a303561-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}