Spikes in Energy Dashboard for Z-Wave Devices

Energy
,
#1

Hi,

I have several Z-Wave switches that record among other things kWh for the attached appliances and I am finding I am getting more and more large spikes of kWh readings in the Energy Dashboard making it useless.

Here is an example for today:

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When I check the history for the devices everything appears fine and the large kWh is not recorded, eg: for today:

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Here is yesterday, again all 3 readings are way out:

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Any ideas what is causing this and how to prevent it?

Thanks!

#2

Just a question : Which z-wave device (Brand and model) is this coming from ?

#3

So far all of them with this issue are Aeon ZW075-C