When you turn on the heat, your furnace should run long enough to warm your home and then shut off once the thermostat reaches the temperature you selected. If it keeps starting, stopping, and starting again every few minutes, something may not be working the way it should.
This is commonly referred to as short cycling, and it can happen for several reasons.
One of the first things to check is your air filter. After months of running the air conditioner through a Bullhead City summer, a dirty filter can restrict airflow through the HVAC system. When airflow is limited, the system may overheat and shut itself down before completing a normal heating cycle.
The thermostat can also be part of the problem. If it isn’t reading the temperature correctly or is located somewhere that experiences unusual temperature changes, it may tell the furnace to turn on and off more frequently than necessary.
There can also be an issue inside the heating system itself. Problems with a flame sensor, limit switch, blower motor, electrical components, or other parts of the furnace can interrupt a heating cycle. These are problems that should be inspected by an HVAC technician rather than trying to diagnose them yourself.
Whatever is causing it, frequent cycling isn’t something you want to ignore. A furnace that constantly starts and stops isn’t operating normally, and all of that extra cycling can put unnecessary wear on the system.
It can also make your home less comfortable. You may notice certain rooms never seem to warm up, the temperature fluctuates throughout the house, or the furnace seems to be running frequently without actually getting the home to the temperature you want.
This is a particularly good issue to catch early in Bullhead City. Heating systems may sit mostly unused during the warmer months, so a problem might not become obvious until you start using the furnace again in the fall or winter.
If you notice your furnace turning on and off repeatedly, start with the simple things. Check the thermostat settings and take a look at the air filter. If those appear normal and the problem continues, it’s time to have the system inspected.
At Quality Comfort Heating & Air Conditioning, we provide furnace, heating, and HVAC repair throughout Bullhead City, AZ and the surrounding area. We can determine why your furnace is short cycling and recommend the right repair to get it operating properly again.
Your furnace doesn’t need to run constantly to keep your home comfortable, but it shouldn’t be turning on and off every few minutes either. If you’re noticing unusually short heating cycles, getting the problem checked now can help you avoid a bigger heating problem later in the season.