High
36 on Ideal Imax W

Your boiler has lost its flame signal during operation, meaning it cannot maintain the heat required to provide you with hot water or central heating.

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

Error code (see Table on page 48 for full list)

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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