Derek Cole walks through why AC units freeze up. Dirty filters blocking airflow is the main culprit, but low refrigerant can also cause it. Check your filter first and look for ice on the outdoor refrigerant line.
The main cause is usually airflow so you need to check your filter to make sure that it's clean, it's been replaced it's not stopped up that way air cannot get through. If airflow is restricted in any way it's going to cause that to freeze over. You'll see kind of like what happens in your freezer when you have too much ice going on there right you see that frozen over coil. Same thing happens with your unit. Also things could be happening especially when you go into cooling season that you'll notice is it's low on refrigerant. We kind of hit refrigerant pretty hard last episode so go back and watch that. But if you're low on refrigerant it will also tend to freeze over and you'll start seeing that at the outdoor unit that little line that goes from the outdoor under your house or in the attic you'll start seeing that freeze over. That's the indication that you're having that kind of challenge as well as.
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