When your furnace is working like it should, it should deliver warmth without making too much sound. While it’s normal to hear your furnace making noise as it turns on, other disruptions are showing your furnace needs immediate professional assistance.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making an odd noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Highlands Ranch, Colorado.

1. Furnace Makes Banging or Knocking Sounds

You could have a critical issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These involve gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over the years, so that’s why it’s essential to schedule routine furnace maintenance with PS Cool Heat. One of the things our professionals perform during this service is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup may crack your furnace’s heat exchanger, where natural gas changes into heat. Any breaks in it can leak carbon monoxide, which is normally released outside. This dangerous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, PS Cool Heat recommends turning it off and calling us at 720-613-2210. Excessive natural gas in your furnace or a ruptured heat exchanger are dangerous troubles that necessitate prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide heated air around your house. If the ductwork wasn’t put in right or is aging, it can be noisy when your furnace runs. This may be the problem if your furnace makes a banging noise when it shuts off. Contact PS Cool Heat at 720-613-2210 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often indicates an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to work on the right voltage. If wires or the box isn’t tight enough, you may notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves heated or cooled air around your home, and a capacitor, which triggers the motor. If either of these pieces are failing, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be the result of something little, like a loose screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and calling our heating professionals at 720-613-2210 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to get your attention it could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubricated. We are aware that maintenance frequently slips your mind, but our professionals can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You might also hear whistling while the furnace is working if a floor vent is loose. If you’ve looked at your vents but are still sensing noise, PS Cool Heat can provide support. It’s critical to get loose ductwork fixed without delay, because it can create comfort problems in your house and drive up your heating expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal racket typically means there’s trouble with your furnace’s blower. Shut down your furnace off immediately and contact our professionals at 720-613-2210 for help.

When you’re hearing an uncommon noise from your furnace, PS Cool Heat is here to support you. Contact us at 720-613-2210 to schedule your furnace repair appointment now.