Why Is The Outside Part Of My Air Conditioning Unit Covered With Ice? Why Is The Outside Part Of My Air Conditioning Unit Covered With Ice? Why Is The Outside Part Of My Air Conditioning Unit Covered With Ice? By urgenta|2019-09-10T15:35:37-07:00January 14th, 2013|Hot Tips| Now, I have to ask...ice or frost? A layer of frost is not a problem, most units [...]