When your furnace is operating correctly, it should provide warmth without creating too much disruption. While it’s expected to notice your furnace making noise as it turns on, other sounds are indicating your furnace should get immediate professional support.

Here are some of the most reported furnace noises and what they might be indicating. If your furnace is making a strange noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Bishop, California.

1. Furnace Makes Banging or Knocking Sounds

You might have a serious situation 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 a few problems. These include gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over time, so that’s why it’s critical to set routine furnace maintenance with Bishop Heating & Air Conditioning. One of the tasks our techs perform during this service is clean your furnace’s burners. When this component gets grubby, you may hear your furnace making a loud rumbling noise after ignition takes longer than normal. The resulting gas buildup can break your furnace’s heat exchanger, where natural gas transforms into warmth. Any breaks in it can leak carbon monoxide, which is normally released outdoors. This hazardous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Bishop Heating & Air Conditioning urges you to turn it off and reaching us at 760-784-9034. Significant natural gas in your furnace or a cracked heat exchanger are dangerous troubles that necessitate fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver hot air throughout your home. If the ductwork wasn’t installed properly or is getting dated, it can be noisy when your furnace runs. This might be the case if your furnace makes a banging noise when it shuts off. Call Bishop Heating & Air Conditioning at 760-784-9034 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the right voltage. If wires or the box needs to be tightened, you might detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or cold air throughout your home, and a capacitor, which turns on the motor. If either of these pieces are fading, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be due to something minor, like a loose screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and contacting our heating pros at 760-784-9034 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to tell you it could use some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn out or a bearing may need to be lubricated. We know that maintenance sometimes slips your mind, but our techs can get your furnace heating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You may also be aware of whistling while the furnace is operating if a floor vent is loose. If you’ve checked your vents but are still sensing sound, Bishop Heating & Air Conditioning can help. It’s critical to get loose ductwork fixed fast, since it can make comfort problems in your residence and inflate your gas costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a good 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. Turn off your furnace off now and reach our pros at 760-784-9034 for help.

When you’re noticing a weird noise from your furnace, Bishop Heating & Air Conditioning is ready to help. Contact us at 760-784-9034 to book your furnace repair appointment today.