BoilerFaultCodesYour boiler started to heat up but the flame went out unexpectedly while it was running.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Loss of flame during operation
What causes this fault?
This fault occurs when the boiler's control system loses the signal that a flame is present while it is already firing. The most common reason is that the flame sensing electrode has become worn or dirty and can no longer detect the heat, although it can also be caused by an unstable gas supply or a failing component preventing the gas from flowing correctly.
DIY fix possible
Check that your gas emergency control valve is fully openIf you have a prepaid gas meter, check that you have sufficient creditAttempt to reset the boiler by turning the selector switch to 'R' for five seconds
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like E128 — no call-out fees, no surprises.
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Baxi GA Range is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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