Pro1 thermostat reading 'LO'
Hello, I have a Pro1 T855iSH thermostat. My AC is turned on and I have the temperature set to 77F and held there (no schedule).
I just walked by my thermostat while the AC was not running and noticed that 'LO' was displayed. I walked back to my laptop to look up what that could mean and couldn't find anything in the either manual online. By the time I walked a back a few minutes later, it was gone and everything looked back to normal.
I pulled it off the wall and put it back on and the AC kicked on. Since then it has run like normal and is blowing cold air.
Does anyone know what this means?
Thanks.