What does the Remeha E6 fault code mean?

Your boiler has shut down because the water returning from your radiators is too hot, meaning the system cannot circulate heat correctly.

How much does it cost to fix Remeha error code E6?

Typical repair cost for the Remeha E6 fault is £120-350 including labour.

Check that at least two or three radiator valves are fully open to allow water flow.

Return temperature too high during operation

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

Sludge build-up — needs flushing, not bleeding.

Each noise points to a different fault.

Safety-critical — turn off, read this.