{"product_id":"carrier-09de064600-transformer-h2ut4z","title":"OEM Carrier Control Transformer 40VA 230V\/115V — 09DE064600","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 230V\/115V for Model 09DE064600\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number \u003cstrong\u003eHT01BC208\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier 09DE064600\u003c\/strong\u003e. The transformer steps down the primary line voltage to the secondary voltage required to power the low-voltage control circuit in your HVAC system. When this transformer fails, the entire control circuit loses power — the thermostat goes blank, the system will not call for heating or cooling, and nothing responds. Replacing a failed transformer is one of the most effective repairs you can make to restore full system operation quickly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 230V primary voltage | 115V secondary voltage | Totaline\/Carrier OEM-matched design | Factory tolerance for reliable control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier part. Generic transformers often use lower-grade core materials and windings, increasing risk of overheating, nuisance tripping, or premature failure — especially under high-demand conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Always photograph or label existing wiring before disconnecting. Check for a shorted control wire or failed board that may have caused the original transformer failure before installing the replacement.\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 Fits Carrier model \u003cstrong\u003e09DE064600\u003c\/strong\u003e. Cross-references include OEM part numbers 320659-301 and 2-05757-1. Verify primary and secondary voltage on your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you order — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640126230899,"sku":"CARRIE-09DE064600-TRANSFORMER-HT01BC208","price":53.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640126263667,"sku":"CARRIE-09DE064600-TRANSFORMER-HT01BC208-GEN","price":47.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC208_2d5bca85-dd14-4218-84b3-8ef377be5615.jpg?v=1775025870","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de064600-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}