OEM Carrier Control Transformer 208/230V to 24V 40VA — HT01CN241 for Model PF1MNC024008AAAA

This is the genuine OEM Carrier replacement transformer (part number HT01CN241) for the PF1MNC024008AAAA fan coil unit. The control transformer is the heartbeat of your HVAC system's low-voltage circuit — it steps down line voltage (208/230V) to the 24V signal used by your thermostat, contactor coils, and control board. When the transformer fails, the entire control circuit goes dead: your thermostat goes blank, the system won't respond to calls for heating or cooling, and no components energize. A failed transformer is often misdiagnosed as a bad thermostat or control board — always check transformer output voltage first.

• Specs: 208/230V Primary | 24V Secondary | 40VA Rating | Direct OEM replacement for Carrier HT01CN241 | Factory-matched windings and insulation class
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances specified by Carrier engineering. Undersized or off-spec generic units can overheat, blow fuses repeatedly, or fail to sustain voltage under full control-circuit load — damaging downstream components.
• Install difficulty: 2/5 — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output after install), wire nuts or spade connectors. Photograph existing wiring before disconnecting. Primary and secondary leads must be correctly identified.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Engineered as the factory-specified transformer for Carrier model PF1MNC024008AAAA fan coil units. Verify primary voltage supply (208V or 230V) matches your installation before ordering. Our parts team is available to confirm fitment — reach out before you order if you have any questions. Order now and ship today!