BoilerFaultCodesWhat the manual says
Manufacturer manualThe burner fails to ignite
What causes this fault?
This fault occurs when the boiler attempts to light the gas but fails to detect a flame after several tries. It is often caused by a worn-out ignition lead that can no longer create a spark or a faulty gas valve that isn't letting fuel into the burner. In some cases, a blocked flue or a problem with the internal electronics can also prevent the ignition process from completing.
This fault can be more common during the first cold snap of winter when components that have been idle over summer are suddenly put under heavy physiological strain.
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 F1: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.