BoilerFaultCodesTechnical description
Low water pressure fault
What causes this fault?
This fault occurs when the water level inside your central heating system drops below the minimum level required for the boiler to pump heat around your home. The most common reasons for this are a leak somewhere in the pipework or radiators, or the air pressure in your expansion vessel needing to be recharged.
This fault is frequently seen in autumn when the heating is first switched back on after summer, as the system settles and reveals pressure losses that occurred while it was dormant.
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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