....The one I have now has an intermittent problem where the compressor doesn't run, it just circulates what ever air is in the house(heating and cooling mode). Same symptom in both heating and cooling? In both experiences techs looked at them many times and never fixed them right. I don't think I like heat pumps.
I think you have a landlord/tech problem. Not much we can do about that. I hope you know about changing the air filter.