High
E01 on Baxi Promax Combi

Your boiler is unable to light a flame, which means you will not have any heating or hot water at the moment.

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

Ignition failure or gas supply fault

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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