High Lockout
e8 on Remeha Avanta 18V

Your boiler has detected a problem with the fan that helps remove exhaust gases, which has caused the system to shut down for safety.

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

Fan fault

What causes this fault?

This fault occurs when the boiler's internal computer is unable to spin the fan at the correct speed or cannot detect that it is moving at all. The most common reasons are a complete mechanical failure of the fan motor, loose or damaged electrical connections between the fan and the control board, or a fault within the control board itself.

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

E4View →E32View →E36View →

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