2 zones, Upstairs zone heating staying on all the time
I have two zones, downstairs and upstairs. Each zone has within it, several smart radiator thermostats. The upstairs zone reads at a low temp but all the radiators are on full and the smart radiator thermostats read the temp on the main smart thermostat (16 degrees) when they are obviously not. I presumed the main thermostat will only call for heat when the thermostat is set to a temp (e.g. 21 degrees).
This is driving me crazy, can you someone have a look and shed some light on this please.