Flame Lockout (Evolve)
On Vokera Evolve boilers, E10 indicates a flame lockout — the boiler has failed to ignite or lost its flame.
Check condensate pipe in cold weather first.
Step-by-Step Fix Guide
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Step 1
Check gas supply
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Step 2
Check condensate pipe in cold weather
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Step 3
Reset using the mode selector
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Step 4
Call a Gas Safe engineer if fault persists
Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.