Your boiler is struggling to ignite or keep a flame going, causing it to shut down for a short safety cooling-down period.
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 or operation; followed by a 3 minute venting cycle
What causes this fault?
This fault occurs when the boiler's control system fails to detect a stable flame after several attempts to light the burner. The most common reasons are worn-out ignition parts that can no longer create a spark or a faulty sensor that cannot tell the boiler the gas has successfully lit.
DIY fix possible
Check that your gas stopcock is fully open.Verify if other gas appliances in your home, like a hob, are working.Try resetting the boiler by pressing the 'Reset' button for two 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 E7 — no call-out fees, no surprises.
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Remeha Avanta 18V 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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