How much does it cost to fix Ariston error code Pump not running?

Typical repair cost for the Ariston Pump not running fault is £150-250 including labour.

Pump not running High

Ariston Pump not running Fault Code

Q: What does the Ariston Pump not running fault code mean?

Your boiler is failing to circulate water because the internal pump has seized or stopped working, meaning you will currently have no heating or hot water.

Also written as PUMPNOTRUNNING — same fault.

The Ariston Pump not running fault code means: your boiler is failing to circulate water because the internal pump has seized or stopped working, meaning you will currently have no heating or hot water.. It appears on 2 Ariston models in our database.

Technical description: Check system pressure, pump cable, P.C.B., or check if the pump is stuck.

Typical repair cost £150-250 (including labour)

Engineer required

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

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Ariston models that show the Pump not running fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ariston Pump not running fault code information on this page is sourced and cross-checked against the official Ariston service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026