High
E02 on Keston Heat 80

Your boiler thinks it sees a flame even though it isn't currently firing, often caused by an electrical glitch or a dirty internal sensor.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

False flame – possibly a problem with the power supply

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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