BoilerFaultCodesWhat the manual says
Manufacturer manualLow Water Pressure
What causes this fault?
This fault occurs when the water pressure inside your heating system drops below a safe operating level, causing the boiler to shut down to prevent damage. The most common reasons for this are a leak somewhere in your radiator network or the pressure naturally dropping over time, especially after you have bled your radiators.
This fault is more common in autumn and winter when homeowners turn their heating back on after a long break and notice leaks from valves or joints.
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.
Avoid the next call-out bill
A cover plan would handle faults like F01: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.