{"product_id":"carrier-c48a205051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C48A205051 (HT01BD236) | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Control Circuit Transformer 40VA for Model C48A205051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C48A205051\u003c\/strong\u003e packaged unit. The transformer steps down line voltage from 120V to the 24V signal required by the thermostat, control board, contactor coil, and all low-voltage safety circuits. When it fails, nothing works — the thermostat goes dark, the system won't respond to any call for heating or cooling, and you may find a tripped secondary fuse or blown 3A fuse on the control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched construction for full system compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact VA and voltage tolerances required by the Carrier C48A205051 control board. Undersized or off-tolerance generic transformers can overheat, trip thermal protectors, or cause nuisance lockouts under full control circuit load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the disconnect box before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter to verify 24V output after installation. Photograph wiring before disconnecting. Primary and secondary leads are typically color-coded.\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 Designed for the Carrier \u003cstrong\u003eC48A205051\u003c\/strong\u003e packaged unit. Verify primary input voltage and VA rating on your existing transformer's label before ordering to confirm fitment. If you're unsure, our HVAC parts specialists can verify compatibility before you purchase — same-day shipping available on all in-stock OEM parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909757915507,"sku":"CARRIE-C48A205051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909757948275,"sku":"CARRIE-C48A205051-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_97ed27f7-c60f-492b-afb1-56d655a9fa8b.jpg?v=1782939131","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a205051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}