Emergency
HIGH WATER TEMPERATURE on Potterton Main Mersey Super

Your boiler has detected that the water inside is getting too hot and has shut itself down to prevent overheating.

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

1. Automatic gas valve push rod sticking. Water rate will be normal.

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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