Medium
117 on Baxi Suprima 60

Your boiler has too much water in the system, causing the pressure to rise above a safe level.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Water pressure too high

DIY fix possible

Check the external filling loop is tightly closed and not passing waterBleed water from a radiator using a bleed key to lower the system pressureMonitor the pressure gauge until it returns to between 1.0 and 1.5 barReset the boiler once the pressure is within the correct range

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