{"product_id":"carrier-pg8uaa048111acja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 40VA 120V-24V — PG8UAA048111ACJA","description":"\u003ch1\u003eOEM Carrier Furnace Control Transformer 40VA 120V–24V for Model PG8UAA048111ACJA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier PG8UAA048111ACJA\u003c\/strong\u003e gas furnace. The transformer steps down the 120V line voltage to the 24V AC signal that powers every low-voltage component in the system — thermostat, gas valve, inducer relay, ignition control board, and zone controls. When the transformer fails, the furnace goes completely silent: no call-for-heat response, no inducer startup, nothing. It is one of the first components to check when the entire control circuit is dead.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | 60 Hz single-phase | Foot-mount configuration | Wire lead connection type with pre-installed insulated female quick-connect terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Numbers:\u003c\/strong\u003e HT01BC116 (original) \/ HT680054 (current OEM successor — factory-authorized direct replacement). Also cross-references: HT01BC115, HT01BB126, HT01CT120, HT01BC120, HT01AW115, HT01AA012, HT01AQ110, 322666-701, B1810113.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the Carrier IFC control board. Undersized or off-tolerance aftermarket transformers can sag under load, causing random lockouts, nuisance board faults, or premature transformer burnout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 24V output after install). Photograph all wire connections before disconnecting. Confirm 24V between R and C terminals on the control board after replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePG8UAA048111ACJA\u003c\/strong\u003e gas furnace. This transformer is also compatible across a broad range of Carrier, Bryant, and Payne furnaces sharing the same 40VA 120V-24V specification — verify your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy. \u003cstrong\u003eOrder today and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642754716019,"sku":"CARRIE-PG8UAA048111ACJA-TRANSFORMER-HT01BC116","price":51.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642754748787,"sku":"CARRIE-PG8UAA048111ACJA-TRANSFORMER-HT01BC116-GEN","price":45.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_f89d8553-589a-4a04-9d05-76fe877aad5d.jpg?v=1775031783","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8uaa048111acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}