OEM Carrier Transformer 60VA 230-24V for Model FD3ANA024006AAAA

This OEM control circuit transformer (part# HT01AW230) is the factory-specified replacement for the Carrier FD3ANA024006AAAA fan coil unit. The transformer steps down 230V line voltage to the 24V signal voltage required by your thermostat, control board, and low-voltage accessories. When this component fails, the entire control circuit goes dark — the thermostat becomes unresponsive, the system will not call for heating or cooling, and no safety outputs will operate. A failed transformer is often misdiagnosed as a control board failure, making it one of the first components to test when nothing works.

• Specs: 60VA output rating | 230V primary / 24V secondary | Factory-matched windings and core for the FD3ANA024006AAAA control circuit | Meets original equipment electrical tolerances
• OEM vs Generic: This OEM unit from Carrier is wound and insulated to exact factory specifications. Generic transformers may be under-rated in VA capacity, leading to overheating, tripped fuses, or premature failure — especially when multiple 24V accessories are connected.
• Install difficulty: 2/5 — Disconnect all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Label all low-voltage wiring before disconnecting, and verify output voltage (should read 24–28V AC) with a multimeter before reassembling the panel.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.

Compatibility: Designed for the Carrier FD3ANA024006AAAA fan coil unit. Confirm your existing transformer's primary voltage (230V), secondary voltage (24V), and VA rating (60VA) on the unit data plate or original component label before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before every order.