Pump overrun thermostat fault High

Potterton Pump overrun thermostat fault Fault Code

Q: What does the Potterton Pump overrun thermostat fault fault code mean?

Your boiler has detected a faulty component that usually helps cool the system down after it finishes running, meaning it may stop working to prevent overheating.

Q: How much does it cost to fix Potterton error code Pump overrun thermostat fault?

Typical repair cost for the Potterton Pump overrun thermostat fault fault is £150-250 including labour.

Also written as PUMPOVERRUNTHERMOSTATFAULT — same fault.

The Potterton Pump overrun thermostat fault fault code means: your boiler has detected a faulty component that usually helps cool the system down after it finishes running, meaning it may stop working to prevent overheating.. It appears on 1 Potterton model in our database.

Technical description: Replacement of pump overrun thermostat required

Typical repair cost £150-250 (including labour)

Engineer required

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

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Potterton models that show the Pump overrun thermostat fault fault code

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

Profile 30E Repair: £150-250

Source

Potterton Pump overrun thermostat fault fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.

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