06-26-2019, 11:24 PM
How old is the AC? When did it last have a maintenance? Could simply be airflow restriction, check the indoor coil and filters, make sure they r not blocked. Bottom coil icing up is indication that condensate is not draining properly due to blockage in drip tray. 90% of the time it just needs a good clean. Turn off mains feed before u do anything.