High Lockout
E160 on Potterton Gold HE

Your boiler has detected an issue with the fan that clears exhaust gases, preventing it from starting up for safety reasons.

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 or Fan Wiring Fault

What causes this fault?

This fault occurs when the boiler's main computer cannot establish a reliable connection with the fan or detects that it isn't spinning at the correct speed. The most common reason is a mechanical failure within the fan motor itself or a loose connection in the wiring that carries signals between the fan and the control board.

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

E133View →

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