OEM Carrier Control Transformer 40VA 208/230V–24V for Model PF1MNC036008AAAA

This OEM Carrier transformer (part number HT01CN241) is the factory-specified 24V control circuit transformer for the Carrier PF1MNC036008AAAA fan coil and air handler unit. Its sole job is to step the line voltage down from 208/230V to a safe 24V signal that powers every component in the control circuit — thermostat, relay coils, reversing valves, and the control board itself. When this transformer fails, the entire low-voltage control circuit goes dark: the thermostat loses power, the system stops responding to calls for heating or cooling, and nothing works — no error codes, no operation. Replacing it with the correct OEM unit restores the full 24V circuit to factory spec instantly.

• Specs: 208/230V Primary | 24V Secondary | 40VA Power Rating | OEM Part# HT01CN241 | Direct drop-in replacement, no modification required
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, manufactured to exact OEM voltage and VA tolerances. Generic transformers often run under-rated VA capacity, causing premature failure under full control-circuit load — especially in multi-stage or communicating systems.
• Install difficulty: 2/5 — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter to verify 24V output post-install. Photograph all wiring before disconnecting. A qualified HVAC technician is recommended for safety.
• Warranty: 1-year OEM manufacturer's warranty. In stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Confirmed fit for Carrier model PF1MNC036008AAAA fan coil / air handler. Verify your unit's data plate lists a 208/230V primary and 24V, 40VA secondary before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions. Order today and get same-day shipping!