{"product_id":"carrier-c48a302762-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C48A302762 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V to 24V for Model C48A302762\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C48A302762\u003c\/strong\u003e packaged unit. Its job is to step down line voltage (120V) to the 24V low-voltage signal that powers your thermostat, contactor coil, and all control board logic. When it fails, the result is total control circuit loss — your thermostat goes blank, the system won't respond to any commands, and no staging or safety functions can operate. OEM part numbers \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e are both factory-approved 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 control transformer | Designed to factory tolerance for the C48A302762 control circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to the exact VA rating and insulation class required by Carrier engineering. Undersized or off-tolerance generic units can overheat, trip thermal cutoffs, or fail to hold voltage under load — causing intermittent lockouts that are difficult to diagnose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power and verify zero voltage before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to confirm 24V output after install). Photograph all wire connections before disconnecting. Wire leads typically connect to spade or screw terminals on the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships the 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\u003eC48A302762\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HT01BD236 and HT01BD702. Always verify your existing transformer's VA rating and primary\/secondary voltages against your unit's wiring diagram before ordering. Need fitment confirmation? Our HVAC parts team is available to verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909753622899,"sku":"CARRIE-C48A302762-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909753655667,"sku":"CARRIE-C48A302762-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_dc8593b6-0279-473c-b9de-83491a3260b8.jpg?v=1782939148","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a302762-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}