OEM Carrier Control Transformer 40VA 208/230V–24V for Model PF4MNA061L00ABAA

This OEM Carrier transformer (part #HT01CN241) is the factory-specified 24V control circuit transformer for the Carrier PF4MNA061L00ABAA air handler. The transformer steps down 208/230V line voltage to the 24V AC signal that powers your thermostat, control board relays, and zone valves. When this component fails, your entire control circuit goes dark — the system will not respond to thermostat calls for heating or cooling, and no safety functions will operate. Common failure signs include a completely unresponsive thermostat, a blown 3A fuse on the control board, or a burning smell near the air handler cabinet.

• Specs: 208/230V primary input | 24V AC secondary output | 40VA rated | Direct OEM replacement for Carrier part #HT01CN241
• OEM vs Generic: OEM transformers are wound to exact factory VA and voltage tolerances, protecting downstream control boards. Generic units with loose tolerances can over-voltage sensitive boards or fail prematurely under full-load conditions.
• Install difficulty: 2/5 — Shut off power at the breaker before working. Tools needed: flathead and Phillips screwdriver, wire nuts or terminal connectors, multimeter to verify 24V output post-install. Always photograph wiring before disconnecting leads.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PF4MNA061L00ABAA air handler. This transformer also fits other Carrier, Bryant, and ICP family equipment specifying a 208/230V primary, 24V secondary, 40VA control transformer. Confirm your existing transformer's primary voltage, secondary voltage, and VA rating against your unit's data plate before ordering. Our parts team is available to verify fitment before you buy — reach out before placing your order.