I've got 2 units in the same facility that have this problem same problem, they both dont go off at the same time, it's periodic. All of a sudden a unit will stop producing heat. It is ON and blowing air but it's cold air. In order for it to blow hot air again I have to go to the breaker panel and shut down the power to the unit for a couple of minutes then pop it back on... then it works fine again for a while and does the same thing.
This happens to both unit's almost every other day.
Is there some type of sensor or something that is causing this?
They are both Carrier Model:48TFE006---501GA units.