What does the Ideal FD fault code mean?

Your boiler is not detecting water moving through the system, which is preventing it from heating up safely.

How much does it cost to fix Ideal error code FD?

Typical repair cost for the Ideal FD fault is £100-£350 including labour.

Check that your home's main stop tap and all boiler isolation valves are fully open.

No water flow

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Six most common causes of dropping pressure.

Each noise points to a different fault.

Sludge build-up — needs flushing, not bleeding.