Dryer does not get hot, only warm

I have a new electric dryer (the second one since the first one had the same problem). The dryer will not get hot. I have had GE here twice, I have had the ducts checked as well as the outside vent cap, the electrical circuits are on. The first dryer would only get hot when it was disconnected from the vent hose. The new one that arrived today is not getting past warm. Do you think it is an electrical issue with the outlet? I don’t have a voltage meter. Do I call an electrician?