Your furnace is a powerful source of heat for your home, however, it is not expected to be running non-stop day and night. Today, we will be discussing a few reasons why your furnace won’t turn off and some courses of action to trouble shoot the issues.

Culprit #1: Dirty Filter
Your furnace's filter needs to be changed every 90 days. If you neglect to replace your dirty filter, you may come across some functional problems, including a furnace that won’t shut off. A filter that is clogged with dust and debris will cause air flow to be restricted which will consequently affect the efficiency of your furnace. If you find that your furnace won't turn off, check the filter fist.

Culprit #2: Thermostat
Another simple reason your furnace won’t turn off may be due to your thermostat being on an incorrect setting. If your thermostat is set to “ON”, your furnace's blower will continue running non-stop. It is important to set your thermostat setting to “AUTO” in order to signal your furnace’s blower to shut off when your living area has achieved its desired temperature.

Another reason why your furnace cannot shut off as a result of your thermostat may be due to deficient wiring. If there are any electrical issues, it is best to call in a certified technician from Maple Air Heating and Cooling, serving the Greater Toronto Area, to manage the issue.

Culprit #3: Fan Limit Switch
Your furnace is made up of several components that rely on each other to work proficiently. Sometimes, malfunctions occur with the motor causing your furnace to run continuously. The issue may lie on a damaged limit switch - which in simple terms is responsible for signalling your furnace blower when to turn on or off. If your fan limit switch is the reason why your furnace is running incessantly, you’ll need to call in a certified technician from Maple Air Heating and Cooling, serving the Greater Toronto Area, to repair the problem.

There are some steps you can take as a homeowner to discover why your furnace is running endlessly. However, some issues can only be uncovered and dealt with by a certified professional. If you are experiencing issues with your furnace and are in need of a furnace repair in the Greater Toronto Area, or a new furnace installation in the Greater Toronto Area, Maple Air Heating and Cooling located in Vaughan can be of assistance. Contact us today to be connected with a specialist.