One of the most frustrating problems with a window air conditioning equipment is if it starts to ice up. For who owns the air conditioner is could be perplexing.
When this problem occurs most people immediately believe that it is the fault of the refrigerant gas. More often the cause is the result of other difficulties.
It is most often the result of poor airflow.
Any time the airflow through an air conditioner is restricted the coolant system becomes affected. If taken up to extremes the critical pressure-temperature balance of the cooling coil can be changed. If they drop too low the cooling coils surface temperature can drop below the dew point temperature of the room. When this happens the cooling coil will quickly operate as a refrigerator rather than an air conditioner. Rather than simply cooling the air it will collect and hold moisture. The moisture will freeze onto the cooling coil where it’ll appear as ice.
The primary job of an air conditioning equipment would be to de-humidify, not refrigerate, the room air. By removing the moisture from the area air it gives us a sense of comfort. To get this done though the temperature of the cooling coil should always be higher than the room’s dew point. If it’s allowed to drop below the dew point the air conditioning equipment will start to produce ice.
With this information in mind the following are several problems that can lead to your air conditioning equipment icing up:
1. Dirty filter.
To avoid this replace or clean your filter every couple of weeks of the cooling season. In case a smoker do it weekly. To completely clean filter remove from air conditioning equipment, wet thoroughly, and lay in bottom of a sink. Sprinkle detergent (laundry detergent is effective) onto filter surface. Allow to sit for a couple of minutes. Add tepid to warm water to sink so that filter is completely covered. Soak for 15 minutes. Remove from water and rinse. Allow to air dry.
2. Dirty or blocked cooling coil.
An air conditioning equipment requires regular maintenance. Usually every several years. Every year would be best, but this can be costly unless you do-it-yourself. During cleaning the cooling coil ought to be degreased and washed to eliminate accumulated dirt and debris. Degreasing is important to remove any coatings on the coil. Or even done greasy residue can trap and hold air borne particles. They’ll build up on the coil and affect heat transfer. If left too much time this can bring about the cooling coil becoming partially blocked. This can produce a lower airflow.
3. Dirty or blocked condenser coil.
The condenser coil is the one at the rear of the air conditioner. Its job is to dissipate the heat that is being removed from the area. Just like the cooling coil it too should be cleaned every few years. Since the condenser is on the outside of the house it becomes exposed to plenty of dirt, pollen, and smog. Since airflow direction is from inside to outside it’s the inside surface of the condenser that becomes dirty. Therefore to clean this part the air conditioning equipment must be completely disassembled. Or even cleaned regularly an airflow blockage here can even burn out the compressor. Before this happens although lowering of airflow will affect the entire operation. This can bring about the compressor efficiency dropping, the internal pressure-temperature relationships being affected, and the resultant production of ice on the cooling coil.
4. Inefficient compressor.
As describe above an inefficient compressor can cause icing up. If the compressor struggles to pump the refrigerant properly the cooing coil may not get cold enough to shut down the cold control. It can hover just above the take off point. At these times the cooling coil will begin to refrigerate. Ice on the cooling coil will result. If интернет-центр климатической техники is at fault the air conditioner will have to be replaced. But note that many icing problems are misdiagnosed as bad compressors if they were actually one of the other faults discussed in this article.
5. Not enough refrigerant. An excessive amount of refrigerant.
Both scenarios can lead to and icing condition. If your air conditioner was repaired recently suspect too much refrigerant. Mixed with an airflow problem this could be difficult to diagnose. Or even repaired recently then suspect airflow problems before considering a refrigerant imbalance.
6. Outdoor temperature too low.
Icing can occur if the exterior temperature falls below 60 Degrees Fahrenheit. If the exterior temperature is too low the air conditioning equipment pressure-temperatures can be affected. When the outside temperature falls the cooling coil temperature may also fall. So much that the coil will refrigerate the area air. This will bring about the cooling coil beginning to produce ice. This issue is more frequent in the fall. If it’s hot throughout the day but cold at night suspect this problem as the reason behind icing up. If this issue is suspected try running the air conditioning equipment in the fan only position. Leave the re-circulating vent open. This can circulate the area air without cooling it, while attracting a small amount of outside air at night time.
