Thermostat weird stuff

I’ve been seeing some strange things with the VMBELO thermostats… where in some cases the BOOST channel stays on (and sometimes the cooling channel too) when flipping through setpoint temperature quickly (which happens if someone switches between the I II and III cooling modes)…

In the picture below, the desired temperature has almost been reached, but booster stays enabled

in this picture the setpoint temperature (+ hysteresis) has been reached. Cooling channel is released but booster is still active

This causes the room to further decrease in temperature as the booster channel does not release…

even when the setpoint temperature is set way higher than the 3C difference… the booster channel stays active

VMBELO firmware 2047

On the VMBGP series the booster disengages with a 2.5C difference (on 0.5 hysteresis)