{"product_id":"carrier-c48a405061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C48A405061 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V to 24V for Model C48A405061\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part# \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C48A405061\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V signal voltage required to power the thermostat, control board, contactor coil, and all low-voltage safety circuits. When this transformer fails, the entire control circuit goes dark — the thermostat becomes unresponsive, the system will not start, and no error codes will display because the board itself has no power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Designed to factory tolerance for the C48A405061 control circuit load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact VA specifications for this unit. Undersized or off-brand transformers can overheat, blow internal fuses, or damage downstream control boards — making OEM the only safe choice for this repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the disconnect box before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade terminals. Verify primary and secondary voltages with a multimeter after installation before restoring full power.\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 Engineered for the Carrier \u003cstrong\u003eC48A405061\u003c\/strong\u003e packaged unit. Always verify the existing transformer's VA rating and voltage markings on your unit's data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment before you purchase — same-day shipping available on all in-stock OEM parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909738877299,"sku":"CARRIE-C48A405061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909738910067,"sku":"CARRIE-C48A405061-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_8f2d39a3-599e-4ffd-8395-04a36208134a.jpg?v=1782939234","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a405061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}