Erratic Smart Heating
We have a smart thermostat. Over the past week or so, it seems to be erratically setting itself to manual temperatures. We have found it at 5 ℃, 8 ℃ and 25 ℃ - all of which are values we would never set it to.
One time, we saw that the display was rapidly changing values without us touching the unit.
Can anyone offer advice on what might be at fault here? At the moment our house may be very cold or wasting energy without our input!