High
Section A on Alpha 240XE

Your boiler is failing to receive a consistent electrical power supply, which means it cannot turn on or heat your water.

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 Main terminals L and N, Main terminal fuse, Both sides of suppressor, or PCB terminals 27, 28

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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