High
3 red flashes on Baxi Suprima 100

Your boiler is failing to light the burner after several attempts, which means your heating and hot water will not work.

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 fault. Boiler has attempted to light 5 times and failed.

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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