Emergency
E35 on Potterton Promax 15/2 HE Plus

Your boiler is failing to detect the flame correctly, so it has shut down to prevent the risk of unburned gas escaping.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description

Incorrect flame signaling

Engineer required

This is a emergency 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

E119View →E133View →

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