OEM Carrier 40VA Control Transformer HT01BC116 for Model PG8JAA024045ABJA

This OEM control transformer is the factory-specified replacement for the Carrier PG8JAA024045ABJA gas furnace. The transformer steps line voltage down from 120V to the 24V AC signal that powers the thermostat circuit, control board, and all low-voltage controls. When this component fails, nothing in the system responds — the thermostat goes dark, the inducer never starts, and there is zero call for heat. A bad transformer is often misdiagnosed as a failed thermostat or control board, making proper diagnosis critical before replacing any other component.

• Specs: Input: 120V AC | Output: 24V AC | Capacity: 40VA | OEM Part Number: HT01BC116 | Factory-matched for Carrier PG8JAA024045ABJA
• OEM vs Generic: This is a genuine OEM Carrier transformer wound to exact factory VA and voltage specifications. Generic transformers frequently under-deliver on VA capacity, causing nuisance tripping of the internal thermal fuse and premature failure — especially in multi-stage systems with higher low-voltage current draws.
• Install difficulty: 2/5 — Disconnect power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (to confirm 0V before touching primary leads), wire nuts or quick-connect terminals. Label all 24V secondary wires before disconnecting. Typical replacement time: 20–30 minutes.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered and tested specifically for the Carrier PG8JAA024045ABJA 80% AFUE packaged gas furnace. Always verify your unit's data plate voltage and VA rating match before ordering. Not sure if this is the right part? Our HVAC parts specialists confirm fitment before you buy — no guesswork, no return hassle.