8 Indicators Your Furnace Needs a Tune-up: Our Guide

Have you ever woken up in the middle of the night because you were freezing? This ultimately disrupts your sleep because you have to stand up and check your thermostat levels. Not only is your sleep disrupted, but also the worst part is you needed to wait until the morning to have someone repair your heating system. As a result, you have to go back to bed with several layers of blankets just to keep you warm. 

This is why you need to invest in furnace tune-ups to prevent situations like this from happening. If you haven’t paid attention to your furnace in quite a while, here are eight signs that indicate it needs a tune-up: 

1. No Heat

This is the most apparent sign that there’s something wrong with your heating system—it doesn’t produce heat anymore. When this happens, it simply means that there’s no sufficient heat flowing through the system, and you’re in need of a tune-up. 

2. Unexplained Increase In Energy Bills

Are your energy bills continually increasing every month with no apparent reason? If that’s the case, you might want to check your furnace’s performance. There’s a chance that your heating system is not performing optimally, which is why it’s working harder and consuming more energy than necessary. 

3. Overwhelming Burnt Fuel Smell

It’s normal to expect a faint smell of burnt fuel when you have a gas or oil furnace at home. However, the smell can become overwhelming that you start to smell it in other rooms, and the smell is stronger closer to the heating system. In such cases, you will need a professional to inspect your furnace. 

4. Carbon Monoxide Detector Malfunction

When this fixture doesn’t turn on or just goes off, that’s a clear sign that you need to have a professional check it. Your furnace’s carbon monoxide detector is crucial because carbon monoxide is odourless and colourless, which means you won’t know it’s there. Remember, inhaling high amounts of carbon monoxide can be fatal. For this reason, when you notice that the detector shuts off automatically, make sure to open your windows and turn off all your gas appliances and call a professional right away to determine the issue.

5. Banging Noises

It’s natural to hear some noises coming from your furnace. However, if you hear loud, banging noises, there could be a problem with your blower motor that needs expert repairing.

6. Thermostat Malfunction

Another sign your heating system needs a tune-up is when your thermostat is no longer responding to your changes, regardless of how much you raise the temperature. 

7. Yellow Or Orange Pilot Light

Your furnace’s pilot light should be blue if it’s operating well. However, if it’s yellow or orange, this is a clear sign that it needs a tune-up.

8. Frequent Repairs

If you frequently have to repair your furnace, then it’s probably time to commit to regular tune-ups so that you can prevent this from happening frequently. Typically, a repair can come up once in every two years, but if it’s more than that, it’s likely there’s a problem with your furnace


Making sure that your heating system is working well is vital. However, if you’re not maintaining it regularly, then you can potentially face bigger problems in the long run. Moreover, this will increase the chances of you waking up in the middle of the night because it’s too cold in your home. Because of this, you must have your regular tune-ups during the fall to ensure that your home is all set for the winter season. That way, you can look forward to a comfortable winter season at home!

Here at Legacy Heating, we can help you with any issues with your furnace in Edmonton and area. We also offer furnaces should you need a new one for your home. Book an appointment with us today!

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