{"product_id":"carrier-c50a305064-transformer-h301d7","title":"OEM Carrier Transformer 40VA 120\/24V for C50A305064 — HT01BD702","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C50A305064\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part number \u003cstrong\u003eHT01BD702\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eC50A305064\u003c\/strong\u003e commercial packaged unit. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, control board, and all low-voltage safety circuits. When this component fails, the entire control circuit goes dark — the thermostat becomes unresponsive, the system will not call for heating or cooling, and no fault codes will display because the board itself has lost power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Class 2 control transformer | Direct OEM replacement for part number HT01BD702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier transformers are wound to exact VA tolerances to protect downstream control boards and thermostats. Undersized or off-tolerance generic units can overheat, trip thermal cutoffs, and shorten the life of expensive control boards.\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 screwdrivers, needle-nose pliers, multimeter (verify 0V before touching wiring). Photograph all wiring connections before disconnecting. Reconnect primary (line) wires first, then secondary (24V) wires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM fit for the Carrier \u003cstrong\u003eC50A305064\u003c\/strong\u003e commercial rooftop\/packaged unit. Always verify your unit's control voltage requirements on the data plate before ordering. If your thermostat is blank, your contactor won't pull in, or your system is completely unresponsive despite power at the disconnect, this transformer is the first component to test with a multimeter. In stock and ready to ship — order by 3PM EST for same-day dispatch.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909692739955,"sku":"CARRIE-C50A305064-TRANSFORMER-HT01BD702","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909692772723,"sku":"CARRIE-C50A305064-TRANSFORMER-HT01BD702-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-HT01BD702_677f1a72-bd85-4c21-9686-e394950364c1.jpg?v=1782938597","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a305064-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}