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7 Top Reason Why Central AC Breaks Down and Freeze in Summer

A Central AC Tips by a Professional HVAC Contractor

Central air conditioning is an essential part of modern life, especially during the summer months. Unfortunately, even the best air conditioning units can break down or freeze, leading to a hot and uncomfortable home.

Here are the 7 top reasons why central AC units break down or freeze during the summer.

  1. Dirty Air Filters

    One of the most common reasons why central AC units break down or freeze is dirty air filters. The air filter is responsible for trapping dust, dirt, and other contaminants from the air.

    Over time, the air filter becomes clogged, reducing air flow to the unit. This reduction in airflow causes the unit to work harder, which can lead to a freeze-up or breakdown of the unit.

    To prevent this from happening, it’s important to change your air filter every one to three months, or as recommended by the manufacturer.

Air Conditioning Maintenance & replacing air filter

  1. Low Refrigerant Level

    Central AC units rely on refrigerant to cool the air. If the refrigerant level is low, the unit may not be able to cool the air effectively, leading to a freeze up or breakdown.

    Low refrigerant levels can be caused by leaks, improper installation, or the unit being undercharged.

    To prevent this from happening, it’s important to have your AC unit serviced by a professional regularly to ensure the refrigerant level is at the proper level.
AC with Low Refrigerant Level
Central AC with Low Refrigerant Level
  1. Clogged Drain Line

    The drain line is responsible for removing excess moisture from the unit. If the drain line becomes clogged, water can back up into the unit, causing it to freeze up or break down.

    Clogged drain lines can be caused by debris, algae, or other buildups in the line. To prevent this from happening, it’s important to have the drain line cleaned regularly by a professional HVAC Contractor.

Central AC Clogged Drain Line

  1. Broken Thermostat

    The thermostat is responsible for regulating the temperature in your home. If the thermostat is broken, the AC unit may not turn on, or it may turn on and off too frequently.

    This can lead to a frozen AC or a breakdown of the unit. To prevent this from happening, it’s important to have your thermostat checked regularly by a professional HVAC contractor.

Cost Installing Thermostat

  1. Faulty Compressor

    The compressor is the heart of the central AC unit, responsible for compressing and circulating refrigerant. If the compressor is faulty, the unit may not be able to cool the air effectively, leading to a freeze up or breakdown.

    To prevent this from happening, it’s important to have your AC unit serviced regularly by a professional HVAC company.

Central AC Compressor

  1. Worn or Damaged Fan

    The fan is responsible for circulating air through the unit. If the fan is worn or damaged, the unit may not be able to cool the air effectively, leading to a freeze up or breakdown.

    To prevent this from happening, it’s important to have your AC unit serviced regularly by a professional HVAC Contractor near me.

Furnace Blower Fan

  1. Electrical Issues

    Central AC units rely on electricity to operate. If there are electrical issues, such as a blown fuse or tripped circuit breaker, the unit may not be able to function properly, leading to a freeze-up or breakdown.

    To prevent this from happening, it’s important to have your electrical system checked regularly by a professional HVAC Contractor.

Get Help From a Professional HVAC Contractor

Central AC units break down or freeze during the summer for many different reasons, including dirty air filters, low refrigerant levels, clogged drain lines, broken thermostats, faulty compressors, worn or damaged fans, and electrical issues.

To keep your central AC unit running smoothly, it’s important to have it serviced regularly by a professional HVAC contractor and to take steps to prevent these issues from happening.

Any Season Heating & Cooling is a Professional HVAC Contractor

By doing your own research and choosing a reputable and qualified AC repair service, you can ensure that your central air conditioning unit will be properly maintained and repaired, helping to keep it running smoothly and efficiently during the summer months.

This will also help prevent any potential breakdowns or freeze-ups, ensuring that your home remains cool and comfortable all season long.

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