MIMOlite Not remembering state

I have a Fortrezz MIMOlite. I am just using the relay to break the thermostat to my hot water heater in my vacation home. During the winter months we want to make sure it’s on. But in summer we shut it off when we are not there.
The issue is the when the power goes out it doesn’t remember its previous state. So power comes back on it always defaults to off.

Any thoughts on how to make it remember state? Do I need to ad a rule to do this?

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