Why Is My HVAC System Short Cycling?

When it comes to your HVAC system, it can’t run at 100% efficiency forever. Eventually wear-and-tear or outside sources will cause problems. One common issue to watch out for is short-cycling. Short cycling is when your HVAC system turns on and shuts down more often and more quickly than it should. This wastes energy and increases the amount of wear-and-tear on your system.

If you noticed that your HVAC system has been short cycling recently, Worcester HVAC in Montgomery County is here to help. There are many different reasons your HVAC system may be short-cycling. You will find the most common causes below.

Size of Your System

When choosing an HVAC system, there are many aspects to pay attention to. One of the most important details you need to get right is the size of your system. It can be tempting to get a larger system to ensure that it can keep your Worcester home cool. However, this can also lead to short-cycling.

When your HVAC system is too large, it doesn’t take long for your HVAC system to create enough warm or cool air to keep your home comfortable. Therefore, it will start up and then shut down again not too long after. This wastes energy and costs you more. It can also offset the humidity levels in your home.


When you first get your HVAC system installed, it is also important to consider where you install your outdoor unit. Every HVAC system has a safety feature that tells the system to shut off it gets too hot. Therefore, if your system is in direct sunlight, this can cause your system to overheat quickly and shut off.

Try to find a shady place to place your outdoor unit. Keep it away from plants, bushes, and trees, though. If sticks, leaves, and other debris get into your system, they can cause more problems.

Ice On the Evaporator Coils

The evaporator coil’s job is to absorb heat from the air. If something goes wrong, condensation on the evaporator coil can freeze, even in the summer. The ice can cause your air conditioner to short-cycle or even shut down. If you notice your system starting up and shutting down often, check your system for ice.

Low Refrigerant Levels

The refrigerant is responsible for absorbing and transferring heat. It is important that you have the right amount of refrigerant in your system. Your HVAC contractor should check the refrigerant levels when you contact them for preventative maintenance.

When the refrigerant levels are low, your HVAC system may begin to short-cycle so it can keep up with cooling your Worcester home. If this is the case, you will need to contact a professional HVAC contractor like Worcester HVAC to add more refrigerant. If this issue is left unresolved for too long, you will likely end up with more costly issues. Therefore, it is important to resolve the problem as soon as possible.

Need Help With Short-Cycling? Contact Worcester HVAC Now!

Do you need help figuring out what is causing your HVAC system to short-cycle? Or do you need help resolving the issue? If so, contact the professionals at Worcester HVAC in Montgomery County. One of our knowledgeable technicians will visit your home, and help you get your system back in working order.

For over a decade, Worcester HVAC has been helping homeowners keep their HVAC running at maximum efficiency so that their home and family can be comfortable. If you would like to contact us for a consultation or repair, please visit our contact page here: https://myhvacteam.com/contact-us/. You can also call Worcester HVAC at 610-287-HEAT.

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