Summer is not far off now, and people are starting to rely on their air conditioners more and more often in order to keep cool. As you start to use your air conditioner to keep cool on a daily basis, you may notice ice starting to form on the inside part of the unit. This may seem like a good thing, but it isn’t. Ice formation is a sign that your system is experiencing a problem, one that needs to be repaired as soon as possible before it gets worse. Read on to find out where air conditioner ice comes from, and what it can do.
Your air conditioner cools your home by using an evaporator coil, which is located in the indoor unit of the system. The coil evaporates refrigerant in order to absorb heat from the air in the ducts. The temperature around the coil drops past the dew point, and condensation forms on the coil. The constant flow of warm air over the coil allows the condensation to remain liquid, and normally it drains off of the coil through the condensate line. If the flow of warm air is interrupted, though, the temperature around the coil will drop below freezing. That causes the condensate to freeze into ice.
If the coil is covered in ice, it will be unable to properly siphon heat from the air in the home. This will cause the output of your air conditioner to drop significantly. Eventually, the weight of the ice will permanently warp the coil and it will have to be replaced. The ice can also spread down the refrigerant line and cause problems with other parts of the air conditioner. This is why you need to have it fixed as soon as you see it.