{"product_id":"carrier-c48a305062-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C48A305062 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C48A305062\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A305062\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V signal voltage that powers your thermostat, contactor coil, and all low-voltage control circuits. When the transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system makes no response to calls for heating or cooling, and in some cases a tripped secondary fuse is the only visible clue. OEM part numbers \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e are both factory-authorized replacements for this application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | Class 2 transformer | Factory-matched to Carrier C48A305062 control board requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances. Undersized or off-tolerance generic units can overheat, trip internal thermal protection, or deliver insufficient current to hold contactor coils — causing intermittent no-cooling complaints that are difficult to diagnose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter. Always photograph or label wiring before disconnecting. Confirm secondary output is 24–28V with no load before reconnecting the control board.\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 warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003eC48A305062\u003c\/strong\u003e packaged units. Replaces OEM part numbers HT01BD236 and HT01BD702. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — reach out before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909748773235,"sku":"CARRIE-C48A305062-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909748806003,"sku":"CARRIE-C48A305062-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_b854bb93-747c-4a67-a17e-9269f03f4ee6.jpg?v=1782939169","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a305062-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}