OEM Carrier Transformer 60VA 230-24V (HT01AW230) for Model FD3ANA018075AAAA

This OEM step-down transformer (part number HT01AW230) is the factory-specified replacement for the Carrier FD3ANA018075AAAA air handler. The transformer converts 230V line voltage down to the 24V signal required to power the control board, thermostat, and all low-voltage safety circuits. When this component fails, the entire control circuit goes dark — your thermostat becomes unresponsive, the system won't call for heat or cooling, and nothing works regardless of thermostat settings. A failed transformer is a common and often overlooked root cause before replacing more expensive components.

• Specs: 60VA rated capacity | 230V primary input | 24V secondary output | OEM part number HT01AW230 | Factory-matched for Carrier FD3ANA018075AAAA air handler
• OEM vs Generic: This OEM transformer is wound to exact factory VA and voltage specifications, ensuring stable 24V output under full control circuit load. Undersized or off-tolerance generic transformers can trip thermal protection, cause erratic board behavior, or fail prematurely under heating and cooling demand cycles.
• Install difficulty: 2/5 — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to confirm 0V before touching wires). Label all low-voltage wires prior to disconnecting. The transformer mounts inside the air handler cabinet and connects to the control board harness.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier FD3ANA018075AAAA air handler. Verify your unit's data plate shows a 230V primary / 24V secondary transformer requirement and confirm OEM part number HT01AW230 before ordering. Our fitment specialists are available to verify compatibility prior to purchase. Order today and receive same-day shipping on all in-stock parts.