- A frozen air conditioner is an indication that something is wrong
- Once the indoor coil is covered in ice it can no longer circulate the heat out of your home
- Coils may freeze as a result of several things
If you notice that your air conditioner is not working as well as it used to, look inside. Are the coils frozen and covered in ice? If so, then you definitely have a problem. While the idea of freezing air conditioning may be appealing during hot summer days in Salt Lake City or Park City, a frozen air conditioner is an indication that something is wrong.
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When the coils freeze this signals that there is a temperature imbalance affecting the refrigerant. The refrigerant needs to move across the evaporator coil at the right temperature in order to help remove heat from the air. The coil should be absorbing heat from the air and expelling it outdoors. If the coil is frozen there is either not enough warm air moving over the coil or the refrigerant is not absorbing heat correctly.
Coils may freeze as a result of several things, such as a broken fan, which isn’t moving enough warm air over the coil. Possibly the filter is too dirty and the airflow has been blocked. It may also be that the air conditioner is the wrong size and can’t keep up with the amount of work required to cool your home. Finally, it could be that the refrigerant levels are low and it needs to be refilled.
No matter what caused the issue, it is something that should be fixed immediately. Once the indoor coil is covered in ice it can no longer circulate the heat out of your home. An icy air conditioner will take longer to cool your home or may not cool it at all. Continuing to power it will only raise your bills.
While the problem might be solved with a new filter, it might also require more technical work. In the case of frozen coils, we recommend contacting an HVAC professional.