{"product_id":"carrier-c50a402752-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A402752","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C50A402752\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A402752\u003c\/strong\u003e commercial packaged unit. The transformer steps down 120V line voltage to the 24V signal used by your thermostat, control board, contactor coils, and all low-voltage safety circuits. When this component fails, the entire control circuit goes dead — no thermostat response, no staging, no ignition sequence. If your unit is completely unresponsive despite having line voltage present, a failed transformer is one of the first components to test.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched for Carrier C50A402752 control circuit requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and potted to exact VA and impedance specifications. Undersized or off-spec generic transformers can overheat, trip their internal fuse repeatedly, or deliver unstable 24V output that causes nuisance lockouts and board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Note wire color and terminal labeling before disconnecting. Verify 24V output after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC50A402752\u003c\/strong\u003e commercial rooftop\/packaged unit. Verify your existing transformer's VA rating, primary voltage (120V), and secondary voltage (24V) against your unit's wiring diagram before ordering. Our parts specialists are available to confirm fitment — reach out before you buy if you have any questions. \u003cstrong\u003eOrder now and your replacement transformer ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909685203315,"sku":"CARRIE-C50A402752-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909685236083,"sku":"CARRIE-C50A402752-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_3b8ab0c2-a90e-4b51-8805-b37b50131d92.jpg?v=1782940502","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a402752-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}