What does the Ariston 1 0 5 fault code mean?

Your boiler is struggling to push water around your heating system, likely due to low pressure or a blockage.

How much does it cost to fix Ariston error code 1 0 5?

Typical repair cost for the Ariston 1 0 5 fault is £100-250 including labour.

Check your boiler pressure gauge and ensure it reads between 1.0 and 1.5 bar

Insufficient circulation

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

Almost always a stuck diverter valve on combis.

Six most common causes of dropping pressure.

Step-by-step using the filling loop.