What does the Ideal FA fault code mean?

Your boiler has detected that the hot water pipes leaving and returning to the unit have been installed or connected the wrong way round.

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

Typical repair cost for the Ideal FA fault is £100-250 including labour.

Flow return reversed

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

Almost always a stuck diverter valve on combis.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.