High
HIGH on Atag Q 30CR

Your boiler has too much water inside the system, causing the pressure to rise above the safe limit.

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

Water pressure is to high (>2,8 bar), if indication remains continuously visible, the boiler is taken out of operation. The installation pressure needs to be decreased by draining water.

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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