High
Pulse Red (5 flashes) on Potterton Envoy

Your boiler has stopped because it cannot maintain a flame to heat your water, which means your heating and hot water have turned off.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Continuous - Flame Failure (during a run)

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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