OEM Carrier 40VA Control Transformer 208/230V–24V for Model PF1MNC061000AAAA

This OEM Carrier transformer (part #HT01CN241) is the factory-specified replacement for the Carrier PF1MNC061000AAAA air handler. The transformer steps down 208/230V line voltage to the 24V DC signal used by the thermostat, control board, and all low-voltage safety circuits. When this part fails, the entire control circuit goes dead — the system will not respond to the thermostat, will not stage heating or cooling, and may appear completely unresponsive even with power present at the unit.

• Specs: 208/230V primary input | 24V secondary output | 40VA power rating | Direct OEM drop-in replacement for part #HT01CN241
• OEM vs Generic: OEM transformers are wound and potted to exact Carrier factory specifications, ensuring stable 24V output under full load. Generic units may sag under load, causing erratic thermostat behavior, nuisance lockouts, or premature control board failure.
• Install Difficulty: 3/5 — Line voltage (208/230V) is present inside the air handler cabinet. Always shut off the disconnect or circuit breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, multimeter (to verify 24V output after install). Label all wires before disconnecting.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship the same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PF1MNC061000AAAA air handlers. Verify your existing transformer's primary voltage (208V or 230V), secondary voltage (24V), and VA rating (40VA) against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — reach out today and ship same business day.