It’s the middle of summer. Temperatures are high and it’s hard to keep a cube of ice frozen in your lemonade. So why is your air conditioning unit frozen? If your air conditioner or heat pump is encased in ice in July and you live in the greater Chicago or Wilmette, IL, area, it’s time to call Gartner Heating & Cooling. Ice on an air conditioner can be caused by insufficient air flow, refrigerant leaks or cold nighttime temperatures. Running a frozen air conditioner can damage the compressor, leading to costly air conditioning repairs.
Insufficient Air Flow
The evaporator coil in the air conditioner gets extremely cold as the unit operates. If air flow is restricted somewhere in the system, the temperature of the coil will drop even more than usual, causing the moisture from the air to collect on it and to freeze. Some factors that can affect air flow are:
- Dirty air filters – Replace or vacuum your air filters regularly to keep the air flowing freely.
- Duct problems – Undersized or collapsed ducts can prevent air from flowing properly through the system.
- Dirt buildup – If debris collects on the evaporator coil, air flow can be restricted.
- Faulty blower mower – If the fan is not operating correctly, air flow will be impeded.
Whenever refrigerant levels dwindle, the pressure in the evaporator coil drops, allowing for moisture from the environment to collect and freeze on the coil. The professionals at Gartner Heating & Cooling can test your system for leaks and replace lost fluid if necessary.
When to Call for Help
If your air conditioner stops cooling your home, check it for ice. If you find ice, turn the system off right away and contact the professionals at Gartner Heating & Cooling. We can inspect every element of your HVAC system and replace any necessary components before the unit suffers damage. Our experts can prepare your HVAC system for the change in seasons and provide appropriate AC maintenance any time of year.