Control HVAC System

Should Your HVAC System Cycle On and Off Frequently?

February 10, 2020

Your HVAC system cycles on and off. The mode you set it on will determine how often it cycles. The HVAC filter and other variables can also influence when the system turns on and how long it stays running. Want to stay on top of your HVAC system’s performance? Keep reading to learn how often the HVAC system in your Clear Spring, Maryland, home should cycle.

Understanding the System’s Settings

When you set the system to ON, it’ll continuously run. It heats or cools the home until it reaches your desired temperature, and the fan stays on to circulate the conditioned air. Setting it to ON can increase your energy bills, but it results in improved comfort.

When you set the system to AUTO, it’ll only run until it heats or cools the home to the temperature set on the thermostat. Once it reaches this temperature, it’ll cycle off. It then turns back on when the temperature dips below the thermostat reading.

You can expect the HVAC system to cycle on and off more frequently when you set it to AUTO instead of ON. It should cycle on and off about three times every hour.

My System is Cycling More Than Three Times Per Hour

If the system is cycling more than three times every hour, it’s short cycling. A dirty air filter, oversized unit and faulty thermostat are the three most common causes of short cycling. You should have your HVAC system inspected right away.

Scheduling preventive maintenance and changing the filter when it’s dirty are key to preventing short cycling. Not fixing the underlying cause of short cycling can result in unnecessary wear, which increases the risk of breakdowns and high energy bills.

Hagerstown Heating & Cooling helps homeowners maximize HVAC efficiency and minimize energy costs. Contact us today if your HVAC system cycles too much.

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