{"product_id":"carrier-c50a306052-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V-24V for C50A306052","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C50A306052\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C50A306052\u003c\/strong\u003e commercial packaged rooftop unit. The transformer steps down line voltage from 120V to 24V AC to power the low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the entire control circuit goes dead: the thermostat displays nothing, the system won't respond to any call for heating or cooling, and no safety circuits can operate. It is one of the first components to check when a unit shows zero control activity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rated | OEM part number HT01BD236 | Factory-matched insulation class and VA capacity for continuous commercial duty\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 the Carrier control board. Undersized or off-tolerance generic transformers can cause nuisance lockouts, contactor chatter, and premature control board failure — especially under full commercial load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect and lock out all power before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (verify 24V output after install), and wire nuts or terminal connectors. Note primary and secondary wiring orientation before 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 Engineered for the Carrier \u003cstrong\u003eC50A306052\u003c\/strong\u003e commercial rooftop packaged unit. Always verify input voltage, output voltage, and VA rating on your unit's wiring diagram or data plate before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you purchase — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909692674419,"sku":"CARRIE-C50A306052-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909692707187,"sku":"CARRIE-C50A306052-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_e1389fcf-3490-4535-81e2-e54edc379f12.jpg?v=1782939352","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a306052-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}