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- Remove and replace the batteries in the Genius Radiator Valve as described in this article. << Link to changing battery article >>
- When the Genius Radiator Valve has restarted, if the error has persisted the device has developed a fault and needs to be replaced. Contact Genius Hub if your device is under warranty.
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If the problem persists see the article: How to - Genius Position the Genius Smart Plugs.
E9 error
The Genius Radiator Valve shows the 'E9' 'Valve closing error' if it tries to close the flow of water through the radiator a number of times and fails. Unmount and remount the Genius Radiator Valve to see if this fixes the problem.
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If the problem persists see the article: How to - Genius Position the Genius Smart Plugs.