What is this?
I've never seen this before. I did a search, but I have no idea really how to word the search as…….I don't know what it is!
Its the black area, with a hand/finger?
What does it mean please?
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Answers
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It means that, for the time period indicated, the schedule was overridden by manual control on the relevant device.
Looks like it was set to be ‘off’. If it wasn’t you who did this, perhaps someone else adjusted a valve by accident?2
