Water level control: lock out High
Your boiler has stopped working because it cannot detect the water level inside the unit, likely due to a loose wire or a faulty sensor connection.
Call an engineer soon
Book a Gas Safe engineer within 24–48 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.
Typical repair cost £120-250 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like Water level control: lock out — no call-out fees, no surprises.
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Remeha Quinta 30 is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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