{"product_id":"carrier-c50a805064-transformer-h301d7","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A805064","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model C50A805064\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD702\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C50A805064\u003c\/strong\u003e commercial packaged unit. The transformer steps down 120V line voltage to 24V AC to power the control board, thermostat, and all low-voltage switching components. When this transformer fails, the entire control circuit loses power — nothing works. Symptoms include a completely unresponsive thermostat, no contactor pull-in, and no blower or burner activity despite line voltage being present at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BD702 | Factory-matched for Carrier C50A805064 packaged systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact VA and voltage specifications for the C50A805064 control circuit. Generic transformers may be under-rated in VA, causing thermal overload trips under normal load and shortening system life.\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, wire stripper, multimeter. Verify 24V output after install before restoring system power. Always confirm primary voltage matches your supply before connecting.\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 specifically for the Carrier \u003cstrong\u003eC50A805064\u003c\/strong\u003e commercial rooftop\/packaged unit. Verify VA rating and primary\/secondary voltages on your unit's data plate before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — order with confidence and get same-day shipping on in-stock OEM parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909662691699,"sku":"CARRIE-C50A805064-TRANSFORMER-HT01BD702","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909662724467,"sku":"CARRIE-C50A805064-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_7d4222e6-c1ef-45e5-a6a0-dfa6f6c82a8b.jpg?v=1782940702","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a805064-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}