BoilerFaultCodesYour boiler is struggling to ignite or keep the flame burning, and it is now trying to clear itself out before attempting to start again.
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 cannot detect a steady flame after it tries to light. The most common reasons are a worn-out ignition spark, a blocked airway, or a faulty gas valve that isn't letting enough fuel into the burner.
DIY fix possible
Check if other gas appliances, like a hob, are working to ensure there is a gas supply.If you have a prepaid meter, check that you have enough credit.Press the Reset button once to see if the boiler restarts.
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 E2 — no call-out fees, no surprises.
Affiliate links — we may earn a commission at no extra cost to you.
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.
Affiliate links — we may earn a commission at no extra cost to you.