Air Conditioner Miami

How do I defrost my air conditioner?
I own a house Rheem air conditioner and it froze. I live in Miami and the boy it is hot. I can not sleep …. HELP! It is only 2 years, should I worry?
Turn it off! Change the filter!. Make sure the fan condensing unit is outside corner. Wash the condensing unit outside Once you disconnect power. If this is not correct, then the unit is low on freon.
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