High
224 on Worcester Bosch Greenstar 8000

Your boiler has detected that it is running too hot and has automatically shut itself down to prevent any damage or safety issues.

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

Safety temp. limiter has tripped

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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