OEM Carrier 40VA Control Transformer 208/230V–24V for Model PF1MNC024005AAAA

This OEM Carrier HT01CN241 control transformer is the factory-specified replacement for the Carrier PF1MNC024005AAAA fan coil and air handler system. The transformer steps down the 208/230V line voltage to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When it fails, the result is typically a completely unresponsive system: a blank thermostat, no blower operation, and no heating or cooling — even though line voltage is present at the unit.

• Specs: 208/230V Primary | 24V Secondary | 40VA Capacity | Direct OEM replacement for part number HT01CN241 | Factory-matched windings and mounting footprint
• OEM vs Generic: OEM transformers are wound to exact Carrier voltage and VA tolerances. Undersized or off-spec generic units can overload under peak demand, causing nuisance trips, board damage, or premature control circuit failure.
• Install difficulty: 2/5 — Shut off all power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to confirm 24V output after install), wire nuts or spade connectors. Photograph existing wiring before disconnecting. Swap is straightforward with basic electrical experience.
• Warranty: 1-year OEM manufacturer warranty. In stock — ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as the direct OEM drop-in replacement for Carrier model PF1MNC024005AAAA. Verify your unit's data plate shows a 208/230V primary and 24V secondary requirement before ordering. Our fitment team is available to confirm compatibility before you buy — reach out before placing your order and we'll verify the match.