5 Reasons Your Furnace Short Cycles in Tomball, TX

Short cycling happens when your furnace turns on and off without reaching the desired temperature on your thermostat. This wastes a lot of energy and is usually a sign that something is wrong. Let’s look at five reasons a furnace might short cycle.

Corroded Flame Sensor

When your system burns fuel, it produces a small amount of water. This water can cause the metal in the furnace’s flame sensor to corrode and rust over time, which will cause the system itself to short cycle. You’ll need an HVAC repair professional to replace a corroded flame sensor.

Overheating Furnace

Most furnaces have built-in safety features that regulate their temperatures and keep them from overheating. If these components aren’t working properly, your system could overheat and shut down.

Dirty Air Filters

When your furnace’s air filters get dirty, they can block the airflow through your ducts and even trap warm air inside your system. The trapped warm air raises the internal temperature of the furnace and causes it to shut down. You’ll need to replace your filters at least once a month to prevent this from happening and to improve your indoor air quality.

Furnace That’s Too Large for Your Home

If your furnace is too large for your home, it’ll almost certainly short cycle as it struggles to maintain a consistent temperature throughout your house. A too-large system is already a waste of money and energy, and short cycling will only make things worse. If you suspect that this is your problem, contact an HVAC professional to have a smaller system installed in your home.

Faulty Thermostat

A faulty thermostat can also cause a furnace to short cycle. This is an easier fix than the other problems in this list, so check your thermostat to make sure it’s working properly.

A short-cycling furnace can cause a lot of issues. If your furnace has been short cycling, contact Better Than Best A/C and Heating to schedule heating services in Tomball, TX.

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