Grundfos UPM3 indicators are off when heating is on

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9 Dec 2020
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hello, keen to get a view whether this is a normal situation, and if not, what the problem might be?
When I turned on my floor heating, the pump switched on with green and orange lights, but when checked 10-15 minutes later the pumps indicators were off while the heating and boiler were still on.
I can see that the pressure bar increased in the heating grid.
Problems with the pump because it is not constantly on or Ok as the pump adjusts regimes?
 

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