{"product_id":"carrier-c50a203062-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A203062","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C50A203062\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A203062\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 it fails, the entire low-voltage control circuit goes dead — the thermostat display may go blank, the system won't respond to calls for heating or cooling, and no fault codes will appear because the board itself has no power. Replaces OEM part numbers \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | Replaces OEM part numbers HT01BD236 and HT01BD702 | Factory-matched impedance and VA rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer meets Carrier's exact VA and winding specifications. Undersized or off-tolerance generic transformers can overheat, trip the internal fuse, or fail to hold voltage under full control circuit load — causing intermittent lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the disconnect box before starting. Tools needed: flathead and Phillips screwdriver, multimeter, wire stripper. Note wire colors and terminal positions before disconnecting the old unit. Verify 24V output with a multimeter before reassembling the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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 \u003cstrong\u003eCarrier C50A203062\u003c\/strong\u003e commercial rooftop packaged unit. Verify your unit's control transformer VA rating and primary voltage on the equipment data plate before ordering. Our parts specialists are available to confirm fitment — call or chat before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909713777011,"sku":"CARRIE-C50A203062-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909713809779,"sku":"CARRIE-C50A203062-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_b01d3888-803d-4310-9574-29a1ac76af3c.jpg?v=1782940351","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a203062-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}