Directory Image
This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Privacy Policy.

How do you Test a Furnace

Author: Riki William
by Riki William
Posted: Mar 09, 2023
air filter

A furnace is an essential component of any heating system. During the winter months, it is in charge of keeping your house cozy and toasty. A furnace may, however, have issues over time, just like any other piece of gear. That's why it is necessary to examine your furnace occasionally to verify that it is running appropriately. This post will discuss how to test a furnace as well as some typical warning indicators that may point to the need for emergency furnace repair Toronto.

Checking the Thermostat

While inspecting your furnace, the first thing you should do is check the thermostat. Make sure the temperature is set higher than the ambient temperature and that the device is in the heat mode. If the thermostat is not adjusted properly, your furnace may not turn on or may not heat your house enough.

Examining the Air Filter

The air filter is responsible for keeping dust, dirt, and other particles from entering the furnace. Over time, the air filter might get clogged, decreasing the airflow to the furnace. The furnace may overheat and shut off as a result of this. Replace the air filter with a fresh one if it's unclean. We suggest checking and changing the air filter at least once a month.

Examining the Ventilation System of the Furnace

The ventilation system is in charge of distributing hot air from the furnace throughout your house. The furnace may overheat and turn off if the ventilation system is blocked. Check the ventilation system for any blockages, such as furniture, carpets, or other items. Remove any obstacles you encounter right away.

Testing the Furnace's Safety Switches

Safety switches on furnaces enable the furnace to be turned off in the event of an issue. Since they stop the furnace from overheating and igniting, these safety switches are essential. To test the safety switches, turn off the furnace and unplug the power supply. The safety switches may then be found by removing the cover panel. Use a multimeter to verify each switch's continuity. A switch has to be changed if there is no continuity, which indicates that it is defective.

Testing the Flame Sensor

The flame in the furnace is discovered by the flame sensor. The furnace may turn off if the flame sensor is clogged or broken. Turn off the furnace and unplug the power supply before inspecting the flame sensor. Find the flame sensor and take it out of the furnace. Use sandpaper or a soft-bristled brush to clean the sensor. If the sensor is damaged, replace it with a new one.

Common Symptoms That May Suggest You Need Emergency Furnace Repair Toronto

If you see any of the following indicators when checking your furnace, it could be time for emergency furnace repair in Toronto:

Strange Noises - Strange sounds emanating from your furnace might be a sign that the engine, blower, or other parts are malfunctioning.

Bad Odors - If your furnace is emitting gas or other foul aromas, there may be a gas leak or a problem with the ventilation system.

Weak Airflow - Poor airflow from your furnace may be an indication that the blower motor or other parts are malfunctioning.

High Utility Costs - If you notice a sudden spike in your energy bills, it might be a sign that your furnace is working harder than normal to heat your house.


To make sure your furnace is operating properly and effectively, you should test it on a regular basis. You may find and solve problems before they become serious by inspecting the thermostat, air filter, ventilation system, safety switches, and flame sensor. Don't hesitate to get in touch if you see any indicators that could suggest you require emergency furnace repair in Toronto.

About the Author

Ricky is a graduate of computer science engineering, a writer and marketing consultant. he continues to study on Nano technology and its resulting benefits to achieving almost there.

Rate this Article
Leave a Comment
Author Thumbnail
I Agree:
  • Guest  -  1 year ago

    "SEO Connect is a small business SEO services company that specializes in providing industry friendly SEO services. We have experience in working for varied set of industries like banking, insurance, travel, IT services, Dental, lawyers, real estate, cosmetics, and many more. Along with SEO, we assist you in developing your brand on online front with other digital marketing techniques like search engine marketing, social media marketing, web designing, content marketing, email marketing and many more." +8169398886. Kailas Tower, A-403, Ramnarayan Narkar Marg, Opp Odeon Mall, Ghatkopar East, Mumbai, Maharashtra 400075 "Monday 9 am–7:30 pm Tuesday 9 am–7:30 pm Wednesday 9 am–7:30 pm Thursday 9 am–7:30 pm Friday 9 am–7:30 pm Saturday 9 am–4 pm Sunday Closed"

Author: Riki William
Premium Member

Riki William

Member since: Feb 11, 2017
Published articles: 1758

Related Articles