What the manual says
Manufacturer manualTemporary 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.
DIY fix possible
Monitor the boiler for several minutes to see if the flame stabilizes on its ownCheck that other gas appliances in the home are working correctly to rule out a supply issuePerform a manual reset of the boiler if the fault does not clear automaticallyContact a Gas Safe engineer if the fault progresses to 3 red flashes
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