OEM Carrier 40VA Control Transformer 208/230V–24V for Model PF4MNA049000AAAA

This is the factory OEM replacement control transformer (part number HT01CN241) for the Carrier PF4MNA049000AAAA fan coil and air handler unit. The transformer steps down line voltage (208/230V primary) to the 24V AC signal used by the low-voltage control circuit—the backbone of every thermostat call, contactor pull-in, and safety-switch response in your system. When the transformer fails, nothing works: the thermostat goes dark, the system refuses all commands, and you may find a blown fuse or tripped breaker on the secondary side. Replacing it with the correct OEM unit restores reliable 24V power instantly.

• Specs: 208/230V Primary | 24V Secondary | 40VA rating | Basler Electric manufactured | Factory OEM part number HT01CN241
• OEM vs Generic: This OEM transformer is wound to Carrier's exact VA and voltage tolerance specifications. Undersized or off-spec generic transformers can overheat, nuisance-trip secondary fuses, or damage sensitive control boards over time.
• Install difficulty: 2/5 — Turn off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label and photograph all low-voltage wiring connections before disconnecting. Confirm fuse integrity on the secondary circuit before energizing.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PF4MNA049000AAAA fan coil/air handler. Also fits other Carrier, Bryant, ICP, Heil, and Tempstar models specifying the HT01CN241 transformer—always verify your unit's data plate and wiring diagram before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy.