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Family-Owned and Locally-Operated in West Houston

Family-Owned and Locally-Operated in West Houston


Cool Care Heating and Air Conditioning Blog

Short Cycling: Cool Care’s Guide to AC Sickness

Air conditioning is a modern necessity, providing relief from scorching summer heat. However, when your air conditioner starts to short cycle, it can be more of a headache than a help.

Short cycling, which we’re calling “AC sickness,” is a problem that needs prompt diagnosis and repair. In this guide, our HVAC contractors in Bellaire explain what short cycling is, why it occurs, and why it’s crucial to address it quickly.

What Is Short Cycling?

Short cycling refers to the frequent turning on and off of your air conditioner in short intervals. Instead of running through a full cooling cycle, the AC shuts down prematurely, only to restart a few minutes later. This constant on-and-off behavior is not only inefficient but can also signal underlying issues with your HVAC system.

Causes of Short Cycling

Understanding the root causes of short cycling is essential for effective diagnosis and repair. Here are some common reasons why your AC might be short cycling:

  1. Thermostat Issues: An improperly placed or malfunctioning thermostat can cause short cycling. If the thermostat is located in a spot that receives direct sunlight or is near a heat source, it might inaccurately detect the indoor temperature, causing the AC to cycle incorrectly.
  2. Refrigerant Leaks: Low refrigerant levels can lead to short cycling. When the refrigerant is insufficient, the AC unit struggles to cool the space, causing it to shut down prematurely and restart frequently in an attempt to reach the desired temperature.
  3. Over-sized AC Unit: An air conditioner that is too large for the space it is cooling will cool the area too quickly and shut off before completing a full cycle. This can lead to short cycling and increased wear and tear on the system.
  4. Clogged Air Filters: Dirty or clogged air filters restrict airflow, causing the system to overheat and shut down to prevent damage. The AC will then restart once it cools down, leading to short cycling.
  5. Electrical Issues: Faulty wiring or electrical components can disrupt the normal operation of the AC unit, causing it to short cycle. These issues require immediate attention from a professional technician.

Why Short Cycling Is a Serious Issue

Short cycling is more than just an inconvenience. It can lead to several significant problems if not addressed promptly:

  1. Increased Energy Bills: Because the air conditioner is turning on and off frequently, it uses more electricity than it would during normal operation. This can lead to significantly higher energy bills.
  2. Increased Wear and Tear: The frequent starting and stopping put additional strain on the AC components, leading to increased wear and tear. This can shorten the lifespan of your system and result in costly repairs or the need for premature replacement.
  3. Poor Comfort Levels: Short cycling prevents the air conditioner from running long enough to effectively cool and dehumidify your home. This results in inconsistent temperatures and reduced comfort.
  4. Environmental Impact: An inefficiently running air conditioner consumes more energy, which can have a negative impact on the environment due to increased greenhouse gas emissions.

Unfortunately, there’s not much you can do on your own. Just detecting this problem is enough to get started.

Schedule repairs or replacement with our team at Cool Care Heating and Air Conditioning, achieving The Best Care for Your Air!

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