What does the Chaffoteaux 30-80 (M, L, M, M, M, M) fault code mean?

Your boiler has detected that it is getting too hot and has temporarily paused operating to prevent damage to its internal parts.

How much does it cost to fix Chaffoteaux error code 30-80 (M, L, M, M, M, M)?

Typical repair cost for the Chaffoteaux 30-80 (M, L, M, M, M, M) fault is £120-250 including labour.

Overheating defect without locking

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Each noise points to a different fault.

Sludge build-up — needs flushing, not bleeding.

Break-even maths on monthly cover.