OEM Carrier 40VA 120V/24V Step-Down Transformer for Model PG95SAS24026ABAA

This OEM replacement transformer is the factory-specified control circuit component for the Carrier PG95SAS24026ABAA 95% AFUE gas furnace. The transformer steps line voltage down from 120V to 24V to power the low-voltage control circuit — including the thermostat, control board, gas valve, and safety switches. When it fails, the entire control circuit goes dark: the thermostat goes blank, the furnace won't respond to a call for heat, and no fault codes appear because the board itself has lost power. A failed transformer is often misdiagnosed as a bad control board — always check the transformer first.

• Specs: 40VA rating | 120V primary / 24V secondary | 50/60 Hz | Single phase | Replaces OEM part numbers 322666-701, HT680054, HT01BC116, HT01BC115, HT01BB126, HT01CT120
• OEM vs Generic: This is a genuine Carrier OEM transformer built to exact factory VA and voltage tolerances. Undersized or off-spec generic transformers can overheat under control board load spikes, tripping the internal fuse and leaving you with an intermittent no-heat complaint that's hard to diagnose.
• Install difficulty: 2/5 — Turn off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Photograph or label all low-voltage wiring before disconnecting. Most techs complete this swap in under 20 minutes.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG95SAS24026ABAA 95% AFUE packaged gas furnace. Cross-references: 322666-701, HT680054, HT01BC115, HT01BC116, HT01BB126. Always verify primary voltage (120V) and VA rating (40VA) on your unit's data plate before ordering. Our parts specialists are available to confirm fitment — order with confidence and get it shipped today.