High
1013 on Worcester Bosch 1000

Your boiler has detected that the burner is running at its maximum capacity for too long, causing it to proactively shut down to prevent overheating.

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

Max. combustion point reached

What causes this fault?

Operating limit reached

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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