Many air conditioning problems are caused by ignorance – icing up is one of them. If you overwork an air conditioner by setting the temperature too low, its ability to cool can be impaired. Air conditioners are not designed to run at full strength all the time. The unit will overheat because it can’t keep up with the thermostat setting. The compressor will then ice up and quit working. Here are some other common causes of this air conditioning problem:
Air conditioners need room to breathe. If the front grille is blocked by drapes, furniture or other objects, air can’t properly circulate through the components.
The filters must be cleaned or changed regularly. As already mentioned, an air con cannot operate effectively if there is an inadequate supply of air. Clogged or dirty filters restrict circulation, which, in turn, causes the compressor to overheat and freeze up.
Low on Refrigerant
Freon refrigerant is used to cool the air that’s circulated into your home through an air conditioning unit. If the refrigerant level is too low, the unit will not be able to cool the air effectively. Again, this causes the compressor to freeze up and stop working. Checking the level of refrigerant should be done by a qualified HVAC technician.