What does the Chaffoteaux 7.iii fault code mean?

Your boiler is releasing water through a safety pipe because internal pressure has built up too high, likely due to an internal air cushion failing.

How much does it cost to fix Chaffoteaux error code 7.iii?

Typical repair cost for the Chaffoteaux 7.iii fault is £120-250 including labour.

Safety valve discharges - Vessel lost air charge

This is a emergency 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.

7 signs repair isn't worth it anymore.

Break-even maths on monthly cover.