{"product_id":"carrier-c50a303062-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A303062","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model C50A303062\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A303062\u003c\/strong\u003e commercial rooftop unit. The transformer steps down 120V line voltage to 24V to power the entire control circuit — including the thermostat, contactor coils, and control board. When it fails, the result is a completely unresponsive system: the thermostat goes blank, no relays energize, and the unit will not start in any mode. OEM part numbers \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e are direct factory replacements for this application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | 120V primary \/ 24V secondary | Class 2 control circuit transformer | Factory-matched impedance and insulation rating for Carrier rooftop applications\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's control boards. Undersized or off-tolerance generic units can sag under load, causing nuisance lockouts, erratic control behavior, or premature board failure.\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 terminal connectors. Confirm secondary voltage reads 24–28V AC after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier C50A303062\u003c\/strong\u003e commercial packaged rooftop unit. Cross-references OEM part numbers HT01BD236 and HT01BD702. Always verify your unit's control voltage and VA requirements on the data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping ensures your unit is back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909702242675,"sku":"CARRIE-C50A303062-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909702275443,"sku":"CARRIE-C50A303062-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_164574f9-87ce-4736-8823-48808a1c3b76.jpg?v=1782940438","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a303062-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}