Many problems can be solved simply by a good cleaning of the unit inside as well as the unit outside.

Joshua if the unit freezes up this can be caused by a couple of things. As mentioned before it needs a good cleaning or the thermostat is not working correctly or you might need some Freon in the unit. Do not let someone tell you they need to drain the system and pull a vacuum and then refill. As the days of cheap Freon is gone. Heck we even used to blow systems out with Freon Back in the mid 70's and before lol.

So Joshua if you need help just give me a ring.