OEM Carrier Transformer 40VA 120V/24V for Model PG9MAA048060AEKA

This is the factory OEM replacement control transformer (part number HT01BC116) for the Carrier PG9MAA048060AEKA gas furnace. The transformer steps down 120V line voltage to 24V AC, powering the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and ignition sequencing. When this transformer fails, the furnace goes completely unresponsive: no call-for-heat response, no blower activation, and no fault codes displayed. It is frequently the first component to inspect when a furnace appears totally dead with no obvious blown fuses.

• Specs: 120V primary | 24V secondary | 40VA output rating | Factory-matched impedance and thermal protection | Replaces OEM part number HT01BC116
• OEM vs Generic: This OEM unit is wound and rated to exact Carrier factory specifications. Generic transformers often use underrated VA cores that overheat under simultaneous thermostat and valve loads, causing nuisance trips or premature failure.
• Install Difficulty: 2/5 — Shut off power at the breaker and confirm zero voltage before removing wiring. Tools needed: flathead and Phillips screwdriver, multimeter, wire labels or tape. Always verify 24V output with a meter before reassembling the unit.
• Warranty: 1-year OEM factory warranty. In-stock and ships the same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PG9MAA048060AEKA gas furnace. Confirm your existing transformer's primary/secondary voltage and VA rating against your unit's data plate before ordering. Our technical team is available to verify fitment — reach out before you buy if you have any questions.