High Lockout
F008 on Intergas Xclusive 24

Your boiler has switched itself off because the fan, which manages air and gas flow, is not spinning at the correct speed to operate safely.

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

Incorrect fan speed

What causes this fault?

This fault occurs when the boiler's internal computer detects that the fan is not spinning at the required speed to safely clear exhaust fumes. The most common reasons are a mechanical failure within the fan motor itself or a communication issue where the control board can no longer send power or signals to the fan.

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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Related fault codes

F007View →F009View →

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