{"product_id":"carrier-c50a406061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A406061","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C50A406061\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eC50A406061\u003c\/strong\u003e commercial packaged rooftop unit. The transformer steps down 120V line voltage to the 24V AC signal that powers every component in the control circuit — thermostat, contactor coils, gas valve, and control board. When the transformer fails, nothing responds: the thermostat goes blank, the unit won't cycle, and no call for heating or cooling is answered. It is one of the first components to check when an entire system goes dead with no obvious cause.\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 HT01BD236 | Factory-matched impedance and thermal overload protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA and voltage tolerances. Undersized or off-tolerance generic units can overheat under full control-circuit load, tripping the internal breaker repeatedly or failing prematurely — especially on commercial rooftop equipment with multiple control loads.\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 wiring before disconnecting. Replace any blown fuse on the secondary side at the same time.\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 climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eC50A406061\u003c\/strong\u003e commercial packaged rooftop unit. Verify primary voltage (120V) and VA rating (40VA) on your unit's data plate before ordering. If you are unsure of fitment, our HVAC parts team will confirm compatibility before your order ships — same day, no hassle.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909677797747,"sku":"CARRIE-C50A406061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909677830515,"sku":"CARRIE-C50A406061-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_d89085ae-99f0-4562-b797-ddccfd2ce34c.jpg?v=1782940549","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a406061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}