BoilerFaultCodesTechnical description
Low pressure
What causes this fault?
This fault occurs when the water level within your heating system drops below the minimum required for the boiler to heat up safely. The most common reason is a slow leak from a radiator valve or joint, though it often happens after you have bled air out of your radiators without refilling the system afterwards.
This issue is more frequent in autumn when homeowners turn their heating back on for the first time or bleed their radiators to prepare for winter.
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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