Reasons Why A Window Air Conditioner Occasionally Freezes Up

A window air conditioner is undoubtedly a great option for zonal heating. They are compact in size and can easily fit into the window without taking up much space. If you want individual cooling systems for each room in your house then a window air conditioner is a great choice. But sometimes the window AC can freeze up and it is one of the common problems experienced with such types of air conditioners. Sometimes, you may see ice forming on the outside part of the unit and it is a sign that the air conditioner has become faulty. This may happen due to different reasons and hiring professional AC companies in Port st. Lucie is a good idea to detect the issue and get the necessary repair or replacement to have your AC up and running again. The following are some reasons why a window air conditioning unit might freeze up.

The AC Is Oversized

If your air conditioner is oversized then it can cause freezing issues outside the unit. If the room is too small and the air conditioner is too large to serve the room then freezing may happen. In such a situation, the AC will short cycle, causing the air conditioner to turn on and off frequently, which prevents proper air circulation leading the moist air to condense on the refrigerant coils, and thus the AC will freeze up.

Incorrect Thermostat Or Fan Setting

If the fan setting is too low while the thermostat is also set low then this will stop the AC from adequately transferring the hot air from the inside to the outside of the house leading to ice buildup. While keeping the fan at a low setting does reduce the noise of the AC but if the AC has to work hard to reduce the inner temperature and that too at a low fan setting then it will be difficult for the air conditioning unit to circulate proper air flows through the coils leading to ice buildup. To prevent this simply turn the fan setting up. If the ice buildup problems still persist then it may be due to a different reason and you may need expert supervision to detect the issue.

The Drainage Isn’t Working

As the evaporator coils absorb heat from the interiors it leads to condensation on the outside unit. The moisture drains away from the system through a catch pan and a drainage tube. In case, this tube becomes clogged, a lot of moisture can collect in the tube leading to freezing up of the coils. If you notice the air conditioner not draining enough moisture even when it is running on full blast then it is a sign that there is a blockage in the drainage tube and you should have your air conditioner checked.

Low Level Of Refrigerant

Sometimes the air conditioner coils may also develop a leak due to some reasons and this leads to a low level of refrigerant in the coils. With a low refrigerant level the flow of air becomes low inside the AC and while your room will continue to keep cool but the AC won’t do so efficiently. You may receive only minimum cooling even when the AC is running on full blast. Also, with a reduced amount of refrigerant the system has to expand more to convert moisture into gas, and with an increased expansion, the temperature will be lower and the liquid will freeze up very rapidly inside the coils. If your AC isn’t cooling enough even on the right temperature settings then you should contact AC companies in Port St. Lucie for repair and replacement immediately.

Issue With the Compressor

If the compressor isn’t working properly, it will be inefficient in pumping the refrigerant and won’t cool the coils enough to turn down the cold control in the appliance. In such a situation, the temperature will remain just above the level which causes the air conditioner to shut off automatically. As the coil remains cold constantly, it eventually develops an ice buildup. Replacing the compressor will get rid of this problem.