{"product_id":"carrier-u19x175u60b-transformer-h3hvc4","title":"OEM Carrier Transformer 120V–24V 40VA for U19X175U60B — HT01CN001","description":"\u003ch1\u003eOEM Carrier Control Transformer 120V to 24V 40VA for Model U19X175U60B — Part HT01CN001\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement control transformer for the \u003cstrong\u003eCarrier U19X175U60B\u003c\/strong\u003e, sourced directly from Carrier's Replacement Components Division. The transformer steps down 120V line voltage to a 24V (and 12V) secondary output, powering the low-voltage control circuit that connects your thermostat, control board, and all system safeties. When this transformer fails — due to a voltage surge, a short in the control wiring, or normal wear — the entire control circuit goes dead: the thermostat loses power, the system won't respond to commands, and you may detect a faint burning smell or buzzing near the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V | Secondary voltage: 24V \/ 12V | Capacity: 40VA | Factory part number: HT01CN001 | Replaces legacy part numbers HT01BJ115, 19EA41612, 19EA42612\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the factory-specified OEM unit — wound to exact VA capacity and voltage tolerances required by the Carrier U19X175U60B control board. Generic transformers rated at nominal 40VA often run under-capacity, causing nuisance lockouts and premature control board failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off power at the disconnect and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire labels or tape. Photograph all low-voltage wiring before disconnecting. Torque all screw terminals firmly — loose connections are the #1 cause of repeat transformer failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eU19X175U60B\u003c\/strong\u003e and related ICP-platform equipment sharing this transformer specification. Always verify your unit's data plate voltage and VA requirements before ordering. Our team is available to confirm fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640245604723,"sku":"CARRIE-U19X175U60B-TRANSFORMER-HT01CN001","price":353.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640245637491,"sku":"CARRIE-U19X175U60B-TRANSFORMER-HT01CN001-GEN","price":311.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01CN001_504a2b04-1377-4cec-8d6d-acc17863b159.jpg?v=1775041098","url":"https:\/\/nationalhvacparts.com\/products\/carrier-u19x175u60b-transformer-h3hvc4","provider":"National HVAC Parts","version":"1.0","type":"link"}