{"product_id":"carrier-c50a306051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A306051","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C50A306051\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eC50A306051\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, contactor coil, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dark — the thermostat display may go blank, the system won't respond to any inputs, and the unit will not heat or cool regardless of settings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V AC | OEM part number HT01BD236 | Direct factory replacement with correct mounting footprint and wire leads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances for the C50A306051 control circuit. Undersized or off-tolerance generic units can cause nuisance tripping, erratic board behavior, or premature failure of downstream low-voltage components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Always verify incoming voltage and confirm the secondary fuse (if present) before condemning the transformer. Label all wires prior to removal.\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 specifically for the Carrier \u003cstrong\u003eC50A306051\u003c\/strong\u003e commercial packaged rooftop unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. Need help confirming fitment? Our HVAC parts team is ready to verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909693690227,"sku":"CARRIE-C50A306051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909693722995,"sku":"CARRIE-C50A306051-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_cb248930-f595-47dd-b408-272c89028e16.jpg?v=1782940471","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a306051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}