Yes. The blower runs in the tstat setting "on" and while blowing heat I switched to "auto" the blower quit and would not restart for some time. (I waited two hours before I tried again and was successful in turning the blower back on) I switched the tstat (to a Honeywell) some time ago and that did not help. So to sum up. The blower will run in "on" but not in "auto". The heat seems to work as needed.