As noted by another user on the forum, it doesn’t appear that the ICONS (e.g., Fan status, Heating/Cooling, etc.) correspond to the actual operation of the stat.
Is this a programming error or a thermostat bug? How do I correct this undesirable behavior?
Since the thermostat runs a user defined program on the unit, it is up to the user to set the icons to what they want them to be. See this thread below where I was working with Temco to get the icons working for myself:
I can’t provide you specific sample code as it highly specific to my use case.
However, If you look in that thread for the post starting with “please update latest firmware rev64.6 and T3000.exe” from Chelsea, you can see the actual code as blue text in an image in her post. That is showing in the T3000 code editor window. Basically, when you write your code to say switch the heat on under specific circumstances, you would then also write something like:
20 AY1[2] = 1
in the same block of code to toggle the icon to show the heating symbol at the same time. You would need something similar with only a number change to switch to cooling or showing no symbol at all.
I am not sure of your comfort level in coding so let me know if this makes sense.