High
3 red flashes on Baxi Suprima 50

Your boiler is failing to light its burner after five attempts, which means it cannot provide heat or hot water and has gone into lockout for safety.

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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