High
50°C neon flashing on Potterton Performa 24

Your boiler has detected a fault and stopped working, and it requires a manual reset to attempt to clear the error.

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

Go to section ‘J’ - Turn the selector to reset. If regular resetting is required or appliance still does not operate investigation is necessary.

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.

Find a Gas Safe engineer
Search the official register →

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