If your AC system is consuming more power than usual, the problem could be attributed to short cycling.
When left unchecked, this otherwise common phenomenon will force your AC system to consume an excessive amount of power while also promoting premature wear and tear of its internal components.
Not many homeowners are familiar with the mechanics of an AC system, however, and even fewer homeowners are familiar with short cycling.
So, what is AC short cycling exactly?
The Basics of AC Short Cycling
Short cycling is a phenomenon in which an AC system frequently turns on and off in short intervals.
All AC systems turn on and off automatically in response to the thermostat. If it’s 78 degrees in your home and you lower the thermostat to 72 degrees, your AC system will turn on until the interior temperature drops to 72 degrees.
When an AC system cycles on and off in extremely short intervals, it’s considered short cycling.
Why Short Cycling Is Bad
As previously mentioned, short cycling contributes to higher utility bills.
Most of the power consumed by an AC system occurs during the cycle intervals. If your AC system short cycles, it will consume more power due to the short cycle intervals.
Not only will your AC system consume more power from short cycling; it may also suffer from premature wear and tear. Each time your AC system turns on and back out, its internal components are stressed.
Modern AC systems can last for 15 to 20 years, but some AC systems may fail prematurely if they suffer from short cycling.
Possible Causes of AC Short Cycling
If your AC system is short cycling, you’ll need to diagnose the underlying cause so that you can fix it.
Start by checking the air filter to ensure it’s relatively clean. If the air filter is clogged with an excessive amount of dirt and debris, your AC system may overheat. As the clogged air filter restricts airflow, the temperature of your AC system will increase. When this occurs, your AC system may automatically turn off early.
An oversized AC system can also cause short cycling. If your AC system is too big for your home, it will quickly cool your home.
Why is this a problem? The fast-cooling nature of an oversized AC system will result in short cycle intervals. Once the AC system reaches the appropriate temperature, it will cut off.
Other possible causes of AC short cycling include low refrigerant, electrical or wiring problems, and frozen coils.
If you are experiencing a problem with your air conditioning or heating call us at 512-336-1431 to schedule an appointment. We’ll be glad to come out and take a look at the issue.
1431-183 A/C & Heating proudly serves Round Rock, Georgetown, Cedar Park, Pflugerville, Leander, Liberty Hill, and North Austin.
