BoilerFaultCodesTechnical description
Low Pressure Error
What causes this fault?
This fault occurs when the water pressure inside your 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 your radiators or pipework, or recent maintenance where air was bled from the system without topping the water back up.
This issue is frequently seen in autumn when homeowners turn their heating back on for the first time and find that pressure has naturally seeped out over the summer months.
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.
Find a Gas Safe engineer
Search the official register →