Low
Pump Overrun - Storage Tank on Potterton Envoy 30

Your boiler is currently running its internal pump to move leftover hot water away from the heating components to prevent overheating, which is a normal part of the shutdown cycle.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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 (Storage Tank)

Engineer required

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

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