OEM Carrier 24V Control Transformer (HT01CN241) for Model PF4MNA061000AAAA

This OEM step-down control transformer is the factory-specified replacement for the Carrier PF4MNA061000AAAA fan coil air handler. The transformer converts 120V line voltage down to 24V AC, powering the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, the result is a completely unresponsive system: the thermostat goes blank, the air handler won't respond to any call for heating or cooling, and no low-voltage components receive power. Replacing it is one of the fastest ways to restore full system operation.

• Specs: Primary voltage: 120V AC | Secondary voltage: 24V AC | VA rating: 40VA | OEM part number: HT01CN241 | Factory-matched electrical specifications
• OEM vs Generic: This is a genuine OEM Carrier transformer built to exact VA and voltage tolerances. Generic substitutes often run outside rated VA capacity, causing nuisance trips, overheating, or premature control board failure.
• Install difficulty: 2/5 — Always shut off power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminals. Photograph all low-voltage wiring connections before disconnecting. Verify 24V output at secondary terminals before reassembly.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered specifically for the Carrier PF4MNA061000AAAA fan coil air handler. Confirm your unit's data plate voltage rating and VA requirements match before ordering. Our parts specialists are available to verify fitment — contact us before you buy if you have any questions.