High Lockout
E130 on Baxi 600 Combi (range)

Your boiler has shut down because a sensor has detected that the exhaust gases are getting too hot, which is a safety feature to prevent damage.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Flue thermostat sensor tripped (lockout)

What causes this fault?

This fault occurs when the internal temperature of the boiler rises significantly above safe limits, specifically within the exhaust system. The most common reasons include a blockage in the heat exchanger that prevents heat from transferring to the water, or a pump failure that stops water from circulating correctly to cool the system down.

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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Related fault codes

E110View →

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