BoilerFaultCodesYour boiler is struggling to ignite or detect a flame, causing the system to stop as a safety precaution.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Error during start-up procedure (requires 3 minute venting cycle after resolution)
What causes this fault?
This fault occurs when the boiler tries to light but fails to establish or sense a stable flame within the set time limit. The most common reasons include a lack of gas reaching the burner, worn-out ignition components that can no longer create a spark, or a dirty sensor that cannot tell the boiler the flame is safely lit.
This issue sometimes surfaces during the first cold snap of autumn when internal components that have been idle all summer finally fail under the strain of constant use.
DIY fix possible
Check that your gas meter is turned on and other gas appliances like the hob are working.If you have a prepaid gas meter, verify that you have sufficient credit.Press and hold the 'Reset' button for two seconds and wait up to three minutes for the venting cycle to complete.
Find a Gas Safe engineer
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Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like e1 — no call-out fees, no surprises.
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Remeha Avanta Plus 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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