High
Water level control: lock out on Remeha Gas 620-510

Your boiler has switched itself off because it cannot properly detect the water level, which is a safety measure to prevent the system from running dry.

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

The boiler goes to lock out if the electrode is disconnected or if there is a shortcut between the electrode and earth. Requires reset by pressing the reset button on the instrument panel.

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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