why would this stat be calling for heat?
Another night of hotter than required house. Half an hour after the house is set to lower temperatures for night time, the dining room radiator stat was reporting it was at 22° while set at 16° but was still calling for heat. When looking at the room display it showed one squiggly line was lit. Can anyone suggest why it was calling for heat when it was reporting a temperature 6° higher than it's set point?