{"product_id":"carrier-pg8uaa048091abja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V–24V 40VA — PG8UAA048091ABJA","description":"\u003ch1\u003eOEM Carrier Furnace Transformer 120V–24V 40VA for Model PG8UAA048091ABJA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8UAA048091ABJA\u003c\/strong\u003e gas furnace. It converts 120V line voltage to the 24V AC signal that powers every low-voltage component in your system — thermostat, gas valve, inducer relay, control board, and more. When the transformer fails, the entire control circuit goes dark: the thermostat display may go blank, the furnace will not respond to a call for heat, and nothing will turn on. Replaces discontinued OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e; current superseding OEM part number is \u003cstrong\u003eHT680054\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary Input: 120V AC | Secondary Output: 24V AC | VA Rating: 40VA | Frequency: 60Hz | Mounting: Foot mount | Connection: Wire leads with insulated female connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA tolerances, protecting sensitive downstream components like the control board and gas valve from voltage sag. Generic units often under-deliver true VA output, causing erratic lockouts and premature board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the breaker before starting. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter. Label or photograph all wiring connections before removal. Check voltage between the C and R terminals on the control board after installation to confirm 24V output.\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 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePG8UAA048091ABJA\u003c\/strong\u003e gas furnace. This part also cross-references HT01BC116, HT680054, HT01BC115, HT01BB126, HT01BC120, and several additional legacy Carrier\/Bryant\/Payne part numbers — verify your unit's data plate voltage and VA rating before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642757173619,"sku":"CARRIE-PG8UAA048091ABJA-TRANSFORMER-HT01BC116","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642757206387,"sku":"CARRIE-PG8UAA048091ABJA-TRANSFORMER-HT01BC116-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_45edf020-bed9-48de-9f75-754c043f0d10.jpg?v=1775031638","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8uaa048091abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}