My Furnace Is Making a Loud Noise

Save

Gas or electric furnaces are a common feature in many homes and businesses to provide heating and cooling. Many companies manufacture furnaces, such as Lennox, Carrier, Goodman and others. While most furnaces perform well with basic care and maintenance on a regular basis, users may occasionally experience problems. One such concern is if the furnace makes a loud noise. Some noises are normal as pipes, ducts or metal parts heat up and cool down, such as chirping, rattling or a boom. Other noises may indicate a problem. Resolving the problem may be possible through some troubleshooting efforts.

Always turn off and unplug a furnace prior to cleaning or maintenance tasks.
(Jupiterimages/Stockbyte/Getty Images)

Things You'll Need

  • Clean cloth(s)
  • Water
  • Dishwashing liquid
  • Towel(s)
Step 1

Examine the area around the furnace to ensure that furniture, toys or other objects are not blocking the vents or grilles, which will obstruct proper air flow. Check the return air grilles throughout the home or business and remove any objects that may be blocking those areas as well.

Check the return air grilles throughout the home or business and remove any objects that may be blocking those areas.
Jupiterimages/Photos.com/Getty Images
Step 2

Turn the control knob to a lower setting if you hear a loud hum when the furnace lights during periods of cold temperature. This will reduce the burner flame.

Step 3

Turn off and unplug the furnace. Open the front access panel and slide out the filter. If the filter is disposable, replace it with a new filter, which can be purchased at most hardware or home supply stores. If the filter is permanent, wash it with water and dishwashing liquid and rinse well. Allow the filter to air dry thoroughly before sliding it back into the furnace.

Turn off and unplug the furnace.
Jupiterimages/Stockbyte/Getty Images
Step 4

Examine the blower wheel for debris. Ensure the blower wheel is aligned properly. Clean it with a damp cloth and dry completely.

Step 5

Remove the furnace burners and clean them with hot water and dishwashing liquid. Dirty burners may cause noise during operation. Rinse well and dry thoroughly before replacing them in the unit.

Remove the furnace burners and clean them with hot water and dishwashing liquid.
svengine/iStock/Getty Images
Step 6

Close the front access panel and restore power to the unit. If the noise continues, contact a service professional for assistance, as the problem may be with the motor or a defective gas valve, which might require service from a technician.

Related Searches

Tips & Warnings

  • Other sounds that may require professional assistance include a loud clunk, whine or screech. Contact a professional technician for consultation.

References

Promoted By Zergnet

Comments

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!