{"product_id":"carrier-09de054800-transformer-h2ut4z","title":"OEM Carrier Transformer 40VA 230\/115V for Model 09DE054800","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 230\/115V for Model 09DE054800\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier transformer (part number \u003cstrong\u003eHT01BC208\u003c\/strong\u003e), factory-specified for use in the \u003cstrong\u003eCarrier 09DE054800\u003c\/strong\u003e unit. The transformer steps down line voltage from 230V primary to 115V secondary at 40VA, powering the low-voltage control circuit that coordinates every function in your system — from thermostat commands to contactor operation. When this transformer fails, the entire control circuit loses power: the thermostat goes blank, the system refuses to start, and no error codes are generated because the board itself has no power to operate.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | 230V primary voltage | 115V secondary voltage | Totaline OEM designation | Cross-references: 320659-301, 2-05757-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier\/Totaline transformer is wound to factory-exact VA and voltage tolerances. Aftermarket units can run hot or under-power sensitive control boards, leading to nuisance lockouts or premature board failure — making the OEM version the clear long-term value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all wires and photograph existing connections before removal. Confirm input\/output voltages with your multimeter after installation before closing the unit.\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 \u003cstrong\u003eCarrier 09DE054800\u003c\/strong\u003e. Verify your unit's transformer primary and secondary voltages on the data plate before ordering to ensure correct fitment. Our parts specialists are available to confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640129474931,"sku":"CARRIE-09DE054800-TRANSFORMER-HT01BC208","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640129507699,"sku":"CARRIE-09DE054800-TRANSFORMER-HT01BC208-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-HT01BC208_0d04604a-b258-4a44-b876-a451ed3cd953.jpg?v=1782942476","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de054800-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}