{"product_id":"carrier-upflow080u2419a-transformer-h3hvc4","title":"OEM Carrier Furnace Transformer 40VA 120V\/24V — UPFLOW080U2419A","description":"\u003ch1\u003eOEM Carrier Furnace Transformer 40VA 120V Primary \/ 12-24V Secondary for Model UPFLOW080U2419A\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer for the \u003cstrong\u003eCarrier UPFLOW080U2419A\u003c\/strong\u003e upflow gas furnace. The transformer steps down 120V line voltage to the 24V control circuit voltage that powers your thermostat, gas valve, inducer relay, and all low-voltage control logic. When this transformer fails, the entire control circuit goes dead — the thermostat gets no power, the furnace will not respond to any call for heat, and no diagnostic fault codes will appear on the board. A failed transformer is often misdiagnosed as a bad control board, making correct identification critical before parts replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary | 12V \/ 24V dual secondary | Replaces legacy part numbers HT01BJ115, 19EA41612, and 19EA42612 | Factory part number HT01CN001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to Carrier's exact VA and voltage tolerances. Undersized or off-spec generic transformers can brown out under load, causing intermittent lockouts and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label all low-voltage wires before disconnecting. A blown fuse on the control board is a common companion fault — inspect and replace the 3A fuse if present.\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 Directly fits the Carrier \u003cstrong\u003eUPFLOW080U2419A\u003c\/strong\u003e upflow gas furnace. This transformer is also used across the broader Carrier, Bryant, and Payne furnace platform — verify your existing transformer's VA rating and primary\/secondary voltages on the data label before ordering. Our fitment team is available to confirm compatibility prior to purchase. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640243736947,"sku":"CARRIE-UPFLOW080U2419A-TRANSFORMER-HT01CN001","price":353.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640243769715,"sku":"CARRIE-UPFLOW080U2419A-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_a767dbfb-c2c8-44fc-be56-a4544dd10f5d.jpg?v=1775031850","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow080u2419a-transformer-h3hvc4","provider":"National HVAC Parts","version":"1.0","type":"link"}