BoilerFaultCodesYour boiler is struggling to light or stay lit because it cannot detect a flame, often due to an issue with the gas supply or the ignition components.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Failure during start-up or operation: check ionisation, gas/air supply, and earth connection.
What causes this fault?
This fault occurs when the boiler's internal sensor fails to detect a flame after several attempts to fire up. The most common reasons are a worn-out ignition probe that can no longer create a spark or a blockage in the gas supply preventing the fuel from reaching the burner.
This issue can occasionally appear during the first cold snap of autumn when internal components that have been idle over summer fail to operate correctly upon restart.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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A boiler cover plan would cover faults like E04 — no call-out fees, no surprises.
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Remeha Quinta 30 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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