If your HVAC system turns on and off frequently, it is going through a process known as short cycling. Short cycling can cause significant wear and tear on the system and lead to a host of problems that may require AC repair. Understanding the common causes of HVAC short cycling can help you tackle the issue before it does too much damage. 

4 Common Causes of HVAC Short Cycling 

1. Dirty Air Filters

Despite air filter changes being a simple process, many homeowners forget to swap out filters every few months. Air filters that are dirty or clogged can reduce the airflow in the system, causing it to work harder and short cycle. Replacing air filters regularly can help prevent this issue and provide the added bonus of keeping your air clean and fresh. 

2. Low Refrigerant Levels

HVAC systems rely on refrigerant to efficiently produce cool or hot air. The system needs to have enough of this liquid to maintain the correct temperature for the process. Therefore, if your refrigerant levels are low, your system may begin to short cycle. An HVAC professional can check the refrigerant levels and add more if necessary.

3. Faulty or Leaky Components

Faulty electrical components, such as relays or capacitors, can cause the HVAC system to short cycle. A number of electrical parts need to function properly in order for your entire system to work, so even if one small piece fails, you can end up with a significant problem. The same point is true for leaking components. In particular, leaky ductwork can cause a loss of air pressure, leading to short cycling. An AC repair professional can address faulty or leaky components so that your system works properly. 

4. Malfunctioning Thermostat

Finally, a malfunctioning thermostat may cause your HVAC system to short cycle. Thermostats can break for a number of reasons, including bad wiring or broken controls. Thermostat repairs can reverse this issue, and as a result, prevent further short cycling. 

If you need help with a short-cycling HVAC unit, contact Wilkes Plumbing & Heating, Inc. in Huron, OH. This professional plumbing and heating company employs a large team of trained and certified technicians who can perform AC repair tasks, installations, diagnostics, and more. See what they have to offer by calling (419) 433-2325 or learn more on their website.