Medium
3 green flashes on Baxi Suprima 100

Your boiler is temporarily losing its flame and is currently trying to fix the problem by restarting itself.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Temporary flame loss. Boiler will self reset, if fault continues you will see 3 red flashes.

From this model's manual
This code was read directly from the manufacturer service manual for this model.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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