Pump Overrun - Central Heating Low

Potterton Pump Overrun - Central Heating Fault Code

Also written as PUMPOVERRUNCENTRALHEATING — same fault.

The Potterton Pump Overrun - Central Heating fault code means: your boiler is performing a routine cycle to safely move remaining heat away from the unit, which is a normal part of the shutdown process after your heating has been running.. It appears on 2 Potterton models in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Control Status: Pump Overrun - Central Heating

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 - Central Heating fault code

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

Source

Potterton Pump Overrun - Central Heating 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