{"product_id":"carrier-c50a305061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A305061","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C50A305061\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier C50A305061\u003c\/strong\u003e commercial packaged system. The transformer steps down 120V line voltage to the 24V signal required by the thermostat, control board, contactor coil, and all low-voltage safety circuits. When it fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to any call for heating or cooling, and no fault codes are generated because the board itself has lost power. If your system appears completely unresponsive and you've ruled out a tripped breaker, a failed transformer is the most likely culprit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | Factory-matched OEM design | Mounts directly to original bracket without modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by Carrier control boards. Undersized or off-tolerance generic units can cause nuisance tripping, control board brownouts, and premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 0V at primary leads before touching any wiring. Label all low-voltage connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the Carrier \u003cstrong\u003eC50A305061\u003c\/strong\u003e commercial packaged unit. Verify primary voltage (120V) and VA rating on your existing transformer's label before ordering to confirm fitment. Our parts specialists are available to verify compatibility before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909694706035,"sku":"CARRIE-C50A305061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909694738803,"sku":"CARRIE-C50A305061-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_b1c24f21-ac6c-438e-819f-87cd477b0348.jpg?v=1782940466","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a305061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}