Is your Furnace Short Cycling? Here’s Why

replacing filter

Do you hear your furnace turning on and off a lot? This is called short cycling and it’s one of the most common HVAC problems that homeowners face.

What is short cycling?

Short cycling is when your furnace repeatedly turns on for a short period of time and then turns off, essentially starting and stopping all day long. Short cycling puts unnecessary stress on your furnace, causing the parts to wear faster and leading to a shorter furnace lifespan. It can also cause uneven heating and high energy usage. If you feel your furnace is short cycling, it’s best to diagnose the problem early to prevent costly repairs down the road.

What causes short cycling?

Furnace size

If your furnace is too big for your home, it will heat up the space quickly and turn off prematurely.
How to prevent: Always have your furnace sized and installed by a professional who will help you to choose the right unit for your home’s HVAC needs.

Dirty filter

A clogged filter can restrict air from passing over the heat exchanger which can cause your furnace to overheat and shut down.
How to prevent: Change your filter often, usually every couple of months or so.

Poor insulation

If your windows and doors are leaking, or you have poor insulation, newly heated air may be escaping before it’s able to heat the space, causing the furnace to start up again.
How to prevent: Check doors and windows for leaks regularly, and fix them if necessary.

Thermostat issues

If your thermostat is malfunctioning or is low on batteries, it may be signaling your furnace to turn off prematurely. Furthermore, if your thermostat is placed too close to a heat source, it may register heat from the alternative source and turn off the furnace before the entire room heats up.
How to prevent: Work with a professional to determine the optimal thermostat placement. Be sure your thermostat always has batteries or power and is clear of dust and debris at all times.

Don’t let short cycling cause you discomfort or high energy bills any longer. Call the experts at Crown Group Ohio today to discuss your options.