OEM Carrier 60VA Control Transformer 230-24V for Model KCABA0401HPD

This OEM Carrier transformer (part# HT01AW230) is the factory-specified replacement for the KCABA0401HPD fan coil unit. The transformer steps down 230V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage switching circuits. When this transformer fails, the entire control circuit goes dead — your thermostat will appear blank or unresponsive, and the unit will not start, heat, or cool regardless of system demand. A faulty transformer is often mistaken for a bad thermostat or control board, making it a critical first diagnostic check.

• Specs: 60VA rating | 230V primary input | 24V secondary output | OEM part number HT01AW230 | Factory-matched for KCABA0401HPD fan coil units
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances required by the factory control board. Undersized or off-tolerance generic transformers can overheat, trip their internal thermal fuse, or deliver unstable 24V output that causes nuisance lockouts and board damage.
• Install difficulty: 2/5 — Shut off all power before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Confirm 230V primary and 24V secondary with a multimeter before energizing. Photograph all wiring prior to disconnecting the old transformer.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our HVAC parts warehouse.

Compatibility: Designed specifically for the Carrier KCABA0401HPD fan coil unit. Verify your unit's data plate shows a 230V primary / 24V secondary control transformer requirement before ordering. If you have questions about fitment, our parts specialists will confirm compatibility before you buy — same-day shipping available on all in-stock orders.