Emergency
29 on Viessmann Vitodens

Your boiler is receiving gas at a pressure that is too high, which could be dangerous and requires a professional to stabilise.

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

Gas flow pressure is higher than the maximum permitted value; a separate gas governor must be installed upstream of the system

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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