3 Common Furnace Problems That You Need to Know About

A broken furnace or heat pump is a major inconvenience for homeowners and their families. In the winter months, staying warm and comfortable is essential for health and safety. A broken unit can be a source of distress and frustration. 

From a sudden breakdown to a mysterious rattle or a strange smell coming from the vents, it can be hard to know where to start. Fortunately, with the right knowledge and understanding, you can troubleshoot many common heating system issues and save time and money. 

There Is No Heat  

It can be worrying and confusing when it is cold outside and your home’s heating system is not working as it should. Knowing the proper steps to take when something goes wrong can save you time and energy. Plus it can keep you warm while you wait for a repair. If the heat is not working in your house, but the furnace is running, you should first check your thermostat.

It is common for thermostats to get bumped or changed to the wrong setting. So checking it first is the best way to rule out a simple solution before calling a repairman. Ensure your thermostat is set to “heat” rather than “circulate air.” If your thermostat is set correctly and the heat is still not working, it may be a sign of a more significant problem. In this case, it is best to call Legacy to diagnose and repair the issue. 

Understanding how your heating system works and the steps you should take when it is not functioning can help you stay safe and comfortable. Remember, if the heat is not working in your house, but the heater is running, you should first check your thermostat.

The Thermostat Is Not Working

If you are having trouble with your thermostat, it is essential to know the two most common causes of malfunction: a cut in the power line heading to the furnace or an electrical issue with the heater. In the case of a cut power line, the thermostat will not be able to receive any power from the furnace. A short cable or a disconnected wire usually causes it. 

If this is the case, the solution is quite simple. All you need to do is locate the cut line or re-attach the disconnected wire. This will have your thermostat should be back up and running in no time.

If the issue is an electrical problem with the furnace, the solution may be more complex. A faulty fuse or a tripped circuit breaker usually causes this concern. In this case, try resetting the breaker or replacing the fuse. If this does not resolve the issue, you may need to call in a professional from Legacy to take a closer look.

The Filters Are Clogged

You may be wondering why clogged filters will not stop your heater from operating as usual. The answer is simple – clogged filters do not restrict airflow but instead block air circulation. However, dirty filters can have a dramatic effect on the performance of your heater.

When the filter on your furnace is dirty, the airflow can become restricted. This makes it more difficult for the furnace to provide the necessary heat for your home. It can lead to reduced efficiency and increased energy costs, as the heater has to work harder to heat your home.


Understanding the root cause of your furnace is essential for its proper functioning. Knowing the source of the problem allows you to take the appropriate steps to address the issue. It could include simple cleaning and maintenance or require a more complex repair. Remember, this can also apply to your Heat Pump if that is your primary piece of heating equipment.

If you are looking for a contractor who provides top-notch services for a furnace in Calgary and Edmonton, you have to turn to Legacy Heating. We will diagnose the root cause of your heater problem so that we can provide effective solutions. Contact us now to remain warm and toasty! As always we provide many different payment options, such as No Interest, No Payments for 1 Year!

Get your Quote here!

HVAC Brands We're Proud to Carry

Legacy only uses the most efficient and cost-effective HVAC products. We pride ourselves on putting quality and customers first! We will equip your new home with the best HVAC system and offer the most reliable residential heating service in Edmonton and Calgary.

Contact Us Today

We’ll help you find the right heating and air conditioning system for you and your budget.

Edmonton Area 780-733-1256 Calgary Area 403-451-1337

Honesty, Integrity, Legacy