Morning We had a problem with ac coming on then off and right back on and when we were in for warranty service, at the plant, we stayed an extra day to have ac man check things out. He did find a problem with one unit we have 2, and then he readjustment the vent openings that they did not redirect air towards the thermostat on the wall above the sink.. 2910T location... and that did help a great deal. So you direct the vent openings for function not your personal want the cool air to blow your toupe' maybe.