High Lockout
E32 on Remeha Avanta 18V

Your boiler has detected an electrical fault with its temperature sensor, which means it cannot accurately monitor the water temperature and has shut down for safety.

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

NTC flow sensor short circuit

What causes this fault?

This fault occurs when the boiler's control board receives an incorrect electrical signal from the main temperature sensor, indicating the circuit has been bridged or 'shorted'. The most common reason is that the internal components of the sensor have failed due to age, or moisture has compromised the wiring connections.

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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