What does the Ariston 108 fault code mean?

Your boiler has detected that the water pressure is too low, which prevents it from operating safely to provide heating or hot water.

How much does it cost to fix Ariston error code 108?

Typical repair cost for the Ariston 108 fault is £0-120 including labour.

Locate the filling loop (usually blue levers or a pull-down tap) underneath the boiler.

All Combi Boilers

This is a high 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.

Almost always a stuck diverter valve on combis.

Step-by-step using the filling loop.