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Experts Explain Why & How Your AC Freezes Up

Even during the hottest days of summer, your air conditioning unit can still freeze up, causing significant issues if it’s not repaired quickly by an AC unit repair team. As one of today’s leading air conditioning installation crews, we’ve seen it a million times. That’s why we wanted to give you some tips on how to avoid having your AC freeze when you need it most.

Dirty Air Filters 

One of the most common problems when it comes to freezing AC units is a dirty and blocked air filter. The lack of airflow caused by the filter makes it impossible for cold air to escape your evaporator coils, causing an ice buildup. To fix this, stay on top of changing your air filters regularly.

Low Thermostat Setting

Having an extremely low thermostat setting can increase the likelihood of condensation and ice buildup. If you think this is the case with your air conditioner, running the fan will help melt that ice. However, you may consider cleaning your AC unit and keeping it at a slightly higher temperature for a more permanent solution.

Running Your AC Unit on Colder Nights or During Winter 

Air conditioners are great because they help dehumidify the air. However, when you run it during the winter months, you risk having it ice over because of the lower temperatures. Often freezing occurs because there’s not enough warm air present to prevent its evaporator coils from freezing.

Consider investing in a humidifier if this is happening to you; nowadays, some air conditioners come complete with humidifiers. You can also avoid using your air conditioner on frigid days.

Low Refrigerant Levels

Your air conditioner relies on refrigerant to keep air cool, but lower refrigerant levels in your system cause the coils to have extremely low pressure and be more prone to freezing. If you suspect you have low refrigerant levels due to a leak, contact an HVAC technician immediately.

Contact us today for more about air conditioning installation and repairs! 

To schedule an HVAC inspection or repair visit, contact us online today or call (503) 378-7482.


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