ᐅ Room thermostat turns by itself

Hello,
this morning I noticed that the room thermostat in the stairwell had somehow turned itself up to 30°C (86°F) as if by ghostly intervention.
I have no idea why.
The heat pump is currently set to hot water operation only. Heating/cooling mode is switched off. It is a Daikin Altherma 3 R Ech2o with underfloor heating.
Could this be possible, or do I need to hire a ghost hunter?

The type of heating system doesn't really matter at this point. What is important is to know what kind of room thermostat you have.

Pitiglianio schrieb:

Could that be possible, or do I need to hire a ghost hunter?

Children in the house? They aren't ghosts, but sometimes little monsters.

nordanney schrieb:

Children in the house? They’re not ghosts, but sometimes little monsters.

I have seen myself how the ERR rotates, because it didn’t operate completely silently.

jrth2151 schrieb:

The type of heating does not really matter at first. What’s important is to know what kind of room thermostat you have.

Maybe the picture helps you.

I’m not familiar with the brand directly, but it looks like the affordable controllers from Prineto. I had those in an apartment once and personally removed them to install smart thermostats. I can show you a photo of the inside:

The round controller is plugged into the red socket. As you can see, there is no motor or anything similar inside. So it shouldn’t be able to adjust itself automatically. In any case, the whole unit operates without power since it’s just a simple thermostat.
I’m not sure offhand how it could have adjusted itself in your case, but the manufacturer might be able to explain that to you.