OEM Carrier 40VA Control Transformer HT01CN241 for Model PF1MNC018T00AAAA

This is the factory-specified OEM control transformer for the Carrier PF1MNC018T00AAAA fan coil unit. The transformer steps down 208/230V line voltage to the 24V AC signal used by the thermostat, control board, and all low-voltage safety circuits. When it fails, the entire control circuit goes dark — symptoms include a blank thermostat display, no response to calls for heating or cooling, and system-wide lockout with no error codes shown. Replacing this transformer with the correct OEM unit immediately restores full low-voltage circuit operation.

• Specs: 208/230V primary input | 24V AC secondary output | 40VA power rating | Basler Electric OEM manufacturer (model BE28316007) | Factory-matched for Carrier PF1MNC018T00AAAA
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances, protecting the control board and thermostat from voltage fluctuations. Generic units often run off-spec, risking nuisance lockouts and premature board failure.
• Install difficulty: 2/5 — Shut off all power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, wire strippers, multimeter. Label all low-voltage wires before disconnecting and verify 24V output with a multimeter before closing the unit.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day when ordered before cutoff.

Compatibility: Direct OEM replacement for Carrier model PF1MNC018T00AAAA fan coil units requiring a 208/230V primary to 24V secondary 40VA control transformer. Verify your existing transformer's VA rating and primary voltage on the unit's data plate before ordering. Our team is available to confirm fitment — order with confidence.