BoilerFaultCodesWhat the manual says
Manufacturer manualLow pressure (Requires 'topping-up')
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 fire up safely. The most common reason is a tiny leak from a radiator valve or joint, though pressure also naturally drops if you have recently bled your radiators to remove air bubbles.
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.
Avoid the next call-out bill
A cover plan would handle faults like Green LED On, Yellow LED On: no call-out fees, no surprise bills.
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