When your furnace is operating properly, it should give heat without generating too much noise. While it’s normal to hear your furnace making noise as it begins running, other noises are showing your furnace needs immediate professional assistance.

Here are some of the most common furnace noises and what they might mean. If your furnace is making an odd noise, our friendly heating pros are here to assist with the best furnace repair in Winnipeg, Manitoba.

1. Furnace Making a Banging Noise

You may have a critical issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might mean there could be several problems. These include gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over time, so that’s why it’s essential to book yearly furnace maintenance with Kirkfield Heating & Air Conditioning. One of the tasks our professionals do during this work is clean your furnace’s burners. When this component gets grimy, you could hear your furnace making a loud rumbling noise if ignition takes longer than normal. The resulting gas buildup might crack your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can discharge carbon monoxide, which is normally emitted outdoors. This toxic gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Kirkfield Heating & Air Conditioning advises turning it off and contacting us at 204-272-8128. Significant natural gas in your furnace or a broken heat exchanger are dangerous troubles that require fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move hot air throughout your home. If the ductwork wasn’t installed right or is getting dated, it can make a lot of noise when your furnace is on. This can be the case if your furnace makes a banging noise when it shuts off. Call Kirkfield Heating & Air Conditioning at 204-272-8128 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound typically means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to operate on the right voltage. If wires or the box needs to be tightened, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or chilly air around your residence, and a capacitor, which starts the motor. If either of these pieces are going out, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be related to something small, like an unfastened screw, or something major, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating specialists at 204-272-8128 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to alert you it could use some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing could need to be lubricated. We know that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You may also hear whistling while the furnace is on if a floor vent is loose. If you’ve checked your vents but are still sensing noise, Kirkfield Heating & Air Conditioning can assist you. It’s essential to get loose ductwork taken care of without delay, since it can result in comfort issues in your residence and increase your gas costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise usually means there’s trouble with your furnace’s blower. Shut down your furnace off promptly and call our professionals at 204-272-8128 for assistance.

When you’re noticing an uncommon noise from your furnace, Kirkfield Heating & Air Conditioning is here to help. Contact us at 204-272-8128 to book your furnace repair appointment today.