High
E167 on Baxi 400 Combi (range)

Your boiler’s internal control board has developed an electronic fault, meaning the computer that runs the system is no longer communicating correctly.

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

Printed circuit board (PCB) error

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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