{"product_id":"carrier-c48a302562-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C48A302562 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C48A302562\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A302562\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V signal voltage required by your thermostat, control board, and all low-voltage control circuits. When it fails, the entire control circuit goes dead — the thermostat loses power, the system stops responding to calls for heating or cooling, and nothing works. If you're seeing a completely unresponsive system and your line voltage checks out, this transformer is almost always the culprit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Class 2 transformer | OEM part numbers HT01BD236 and HT01BD702 — factory-matched replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA ratings and insulation class. Undersized or off-tolerance generic units can overheat under normal control circuit loads, tripping thermal protection and causing intermittent failures that are difficult to diagnose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage before touching any wiring. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all low-voltage wiring connections before removal. The transformer typically mounts to the control panel bracket with two screws.\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 Engineered for Carrier model \u003cstrong\u003eC48A302562\u003c\/strong\u003e packaged units. Cross-references OEM part numbers HT01BD236 and HT01BD702. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit's data plate or wiring diagram before ordering. Our parts team is available to confirm fitment before you buy — ships today!\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909754704243,"sku":"CARRIE-C48A302562-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909754737011,"sku":"CARRIE-C48A302562-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_e20bf122-529b-4c47-985d-4603b15eccac.jpg?v=1782899323","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a302562-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}