What does the Ariston 1 P3 fault code mean?

Your boiler is struggling to move water around your heating system effectively, usually due to low pressure or trapped air.

How much does it cost to fix Ariston error code 1 P3?

Typical repair cost for the Ariston 1 P3 fault is £90-250 including labour.

Check your boiler's pressure gauge and ensure it is between 1 and 1.5 bar

Insufficient circulation indication

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.

Step-by-step using the filling loop.

Each noise points to a different fault.