{"product_id":"carrier-c50a205061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A205061","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C50A205061\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A205061\u003c\/strong\u003e commercial rooftop unit. The transformer converts 120V line voltage to the 24V AC signal that powers your entire control circuit — including the thermostat, contactor coil, gas valve, and control board. When this part fails, absolutely nothing in the system responds: no call for heat or cool, no contactor engagement, and no fault codes on the board. If your system is completely unresponsive with line voltage confirmed at the unit, a failed transformer is the most common cause.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Single-phase | OEM part number HT01BD236 | Factory-matched output voltage tolerance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage specifications for the C50A205061 platform. Undersized or off-tolerance generic transformers can cause erratic thermostat behavior, nuisance tripping of the secondary fuse, and premature control 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, needle-nose pliers, multimeter (verify 0V before touching terminals). Photograph or label all wiring before disconnecting. Secondary fuse should also be inspected and replaced if blown.\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 Designed for the Carrier \u003cstrong\u003eC50A205061\u003c\/strong\u003e commercial packaged rooftop unit. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909710106995,"sku":"CARRIE-C50A205061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909710139763,"sku":"CARRIE-C50A205061-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_6ed760ce-4da4-440b-986e-0b91e9ecd0ca.jpg?v=1782940382","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a205061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}