High Lockout
E07 on Remeha Avanta Plus 35c

Your boiler has detected a problem with the sensor that monitors the temperature of the water leaving the unit, causing it to shut down to prevent overheating.

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

Flow temperature sensor error (S1)

What causes this fault?

This fault occurs when the internal control board loses communication with the flow temperature sensor or receives an implausible reading. The sensor has likely failed due to age and heat degradation, or the electrical connection has become loose or damaged, preventing the boiler from safely monitoring heat levels.

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
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Related fault codes

E01View →E03View →E08View →E09View →

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