OEM Carrier 40VA Control Transformer HT01CN241 for Model PF1MNC018000AAAA

This is the genuine OEM Carrier control transformer (part number HT01CN241), the factory-specified replacement for the Carrier PF1MNC018000AAAA air handler. The transformer steps down line voltage (208/230V primary) to 24V on the secondary side, powering the low-voltage control circuit that operates your thermostat, contactor coils, and all system controls. When this transformer fails, the entire control circuit goes dead — symptoms include a completely unresponsive thermostat, no call-for-heat or cool, tripped circuit breakers on the low-voltage side, or a burned smell near the air handler cabinet.

• Specs: 208/230V Primary | 24V Secondary | 40VA rated | OEM part number HT01CN241 | Factory Authorized Parts™ specification
• OEM vs Generic: Genuine Carrier OEM transformers are wound to exact VA and voltage tolerances, protecting downstream components like the control board and contactor coils. Undersized or off-tolerance aftermarket transformers are a leading cause of repeat control board failures.
• Install difficulty: 2/5 — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all low-voltage wire connections before removal. Verify 24V output at secondary terminals before reassembly.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse when ordered by cutoff time.

Compatibility: Direct OEM replacement for Carrier model PF1MNC018000AAAA air handler. Verify your unit's data plate shows a 208/230V primary and 24V secondary 40VA transformer requirement before ordering. Our fitment team is available to confirm compatibility — just reach out before you buy.