High Lockout
E160 on Potterton Gold Combi HE

Your boiler has detected that the internal fan, which clears waste gases from the system, is not spinning at the correct speed or has stopped working.

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 control system detects that the fan is failing to reach the required speed to safely clear combustion gases. The most common reasons are a build-up of debris causing the fan to seize or an electrical failure where the circuit board can no longer communicate with the fan motor.

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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