High Lockout
E07 on Vokera Mynute Vhe

Your boiler's main temperature sensor has developed a fault or is disconnected, meaning the system cannot safely monitor how hot the water is getting.

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

Primary thermistor fault

What causes this fault?

This fault occurs when the boiler's control board loses communication with the sensor that measures the water temperature. The most common reason is that the sensor has physically failed due to wear and tear, or the electrical connection between the sensor and the main circuit board has become loose or corroded.

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

E01View →E05View →E08View →

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