Why Does My AC in Charleston, SC Keep Turning Off?

When the temperature hits 80 degrees and higher Fahrenheit in Charleston, SC, you want a reliable air conditioning system. If an AC system starts to turn off and on, or short cycle, it indicates a problem. Here are some common reasons why this happens and what you can do about it.

Dirty or Clogged Air Filter

The air filter on your AC blocks dust, dirt and other contaminants from blowing around your home. When the airflow reduces, your AC unit can overheat. You should change your air filter every two to three months.

Electrical Problems

An undiagnosed electrical problem is often the cause of an AC system shutting off with no warning. You shouldn’t attempt to diagnose or fix an electrical problem on your own. Contact a licensed HVAC technician in Charleston, SC to evaluate your HVAC system.

Malfunctioning Thermostat

A functioning thermostat is essential to keeping your home comfortable. There are many reasons your thermostat might not be working. A licensed HVAC technician can decide whether to fix or replace the thermostat.

Frozen Evaporator Coil

There are several ways your evaporator coil can freeze up. If this happens, your system may start to short cycle to indicate a problem. You can sometimes thaw a frozen coil by shutting the system off for several hours. If this doesn’t work, contact one of our HVAC technicians.

Low Refrigerant

An appropriate level of refrigerant in your cooling system is essential for it to work properly. If the substance is low, it means there’s a leak somewhere. This is a serious issue that you shouldn’t try to fix on your own.

Many of the problems that cause an air conditioning unit to short cycle require the expertise of a licensed HVAC technician. M & B Heating and Air has the expertise and experience you need for all of your HVAC needs, including heating and air conditioning services. Give our NATE-certified technicians a call today to schedule an appointment.

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