OEM Carrier Furnace Transformer 120V–24V 40VA for Model PG8MAA060155ABJA

This OEM step-down transformer is the factory-specified replacement for the Carrier PG8MAA060155ABJA gas furnace. It converts 120V line voltage down to 24V AC to power the entire low-voltage control circuit — including the thermostat, control board, gas valve, and zone controls. When the transformer fails, the result is total system silence: the thermostat goes blank, nothing responds, and you may measure 0V between the R and C terminals on the control board. This is a direct OEM replacement built to factory specifications, superseding the original part number HT01BC116.

• Specs: Input 120V AC | Output 24V AC | 40VA rating | 60 Hz | Foot-mount configuration | Wire lead connections
• OEM vs Generic: OEM transformers are wound and insulated to exact Carrier factory tolerances, ensuring stable 24V output under full load. Generic units frequently deliver inconsistent voltage that can damage sensitive control boards and gas valves over time.
• Install Difficulty: 2/5 — Shut off power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wire connections before disconnecting. Verify 24V output between R and C terminals after installation to confirm correct operation.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered for the Carrier PG8MAA060155ABJA gas furnace. This OEM part supersedes original part number HT01BC116 and is also cross-referenced with HT01BC115, HT01BC120, HT680054, and several other legacy numbers. Verify your unit's data plate voltage before ordering. Our team is happy to confirm fitment — contact us before you buy.