What the manual says
Manufacturer manualIf Flame Failure Light is ON. Press the Reset Button. If Flame Failure occurs persistently consult your Installer or Service Engineer.
What causes this fault?
This fault occurs when the boiler's internal sensor fails to detect a steady flame after several ignition attempts. The most common reasons include a lack of gas reaching the burner, dirty electrodes that can no longer spark correctly, or a faulty sensor that cannot 'see' the flame even if it has lit.
This fault is more common during the first cold snap of winter when components that have been idle all summer are suddenly forced to work under high demand.
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 Flame Failure (Red Light): no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.