Why is My Air Conditioner Freezing Up?

Imagine you are relaxing in your home on your couch, watching an excellent series, and suddenly your chilled room becomes unusually hot. You go-ahead to investigate the cause and discover your air conditioner is freezing up, and there is no cold air coming out of the appliance, and this has led you to wonder why your appliance is freezing up during the hotter months of the year.

Not to worry, hundreds of homeowners have experienced their conditioners freezing, and here are some of the likely conditions that make your air conditioner freeze up.

  • Dirty or clogged air filters
  • Damaged blower motor
  • Low refrigerant

Dirty or clogged air filters

An air filter in an AC unit serves an essential purpose by ensuring dust, pollen, and other air contaminants do not gain entry or accumulate inside the HVAC internal components. Since the air is regularly filled with debris and other minute contaminants, the air filters will always accumulate dirt, and if left unattended, they can eventually get clogged up.

Clogged air filters are one of the major causes of HVAC malfunctions as dirt clogs the air vents causing insufficient cold air to flow into the home and the warmer air struggles to pass out. Cleaning the air filters properly by washing them will help eliminate the dirt and ensure the filters are dry before installing. For filters with too much dirt, it’s best to replace them with a new air filter and then clean the old one.

Damaged blower motor

The AC blower fan or motor is designed to power the AC fan, which controls cold and warm air entry and exit in and out of the home. The blower fan is an important condensing unit of the house, and a broken or damaged blower fan can mess up the regular flow of air in the home.

In cases where the fan ceases to operate completely, the moisture on the coils can freeze up completely, halting the airflow throughout the home.

Unlike some conditions that can be rectified quickly, a damaged fan can only be repaired by an HVAC technician. This professional will look at the fan’s speed, rotation, and power output to help determine the next step, which may be total replacement or repair.

Low refrigerant

The AC refrigerant is a fluid used in air conditioning systems that constantly transition from liquid to gas and back to liquid again. Low-grade refrigerant in the AC unit can pose a problem as it expands more during its transition. This extended expansion lowers the temperature in the AC unit, causing it to freeze internally. Low grade refrigerant is often caused by a leak or damage to the lines.

A professional HVAC technician can repair the low refrigerant level. The technician will check for leaks and repair or seal them immediately. Also, the refrigerant will be topped up to the required amount to ensure the air conditioner is in perfect condition.

What Should I do Now?

Are you currently reading this blog piece with a frozen AC unit? Do you need immediate help? Don’t fret, as High Efficiency, a professional HVAC company, can help you thaw the frozen AC unit, investigate the cause and apply the immediate process to rectify it.

High Efficiency has helped hundreds of families like you repair and replaces their HVAC units seamlessly, placing us as one of the best professionals in the city.