High
Section B on Alpha 240XE

Your boiler is struggling to circulate water because the pump responsible for moving it around your system is not receiving the correct power, causing your heating and hot water to stop working.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

240 V at Pump or PCB terminals 20, 21

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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