What does the Ideal Flow return reversed fault code mean?

Your boiler is confused because the pipes measuring the water temperature seem to be the wrong way around or a sensor has come loose.

How much does it cost to fix Ideal error code Flow return reversed?

Typical repair cost for the Ideal Flow return reversed fault is £90-160 including labour.

Check if the flow thermistor is correctly clipped to pipe. If not, replace flow thermistor.

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

Work through these before the call-out.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.