OEM Carrier 40VA Control Transformer 120V/24V for Model PF1MNB060000AAAA

This OEM control transformer (part number HT01CN241) is the factory-specified replacement for the Carrier PF1MNB060000AAAA air handler. The transformer steps voltage down from 120V (primary) to 24V (secondary), powering the low-voltage control circuit that drives your thermostat, contactor coil, and control board. When this component fails, the entire control circuit goes dead — your thermostat displays nothing, the system won't respond to calls for heating or cooling, or you may find a repeatedly tripped low-voltage fuse on the board.

• Specs: 120V primary | 24V secondary | 40VA rating | Factory-matched OEM construction | Replaces OEM part number HT01CN241
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances for the Carrier control board. Generic alternatives can deliver inconsistent secondary voltage, causing nuisance lockouts, erratic thermostat behavior, and premature control board failure.
• Install Difficulty: 2/5 — Disconnect power at the breaker AND the unit disconnect before servicing. Tools needed: flathead and Phillips screwdrivers, wire strippers, multimeter. Always verify 0V at primary terminals before touching wiring. Label all low-voltage wires before disconnecting.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model PF1MNB060000AAAA air handlers. Confirm your existing transformer's VA rating and primary/secondary voltages on the unit's data plate before ordering. Our fitment team is available to verify compatibility — contact us before you buy if you have any questions.