Blower wheel is loose from the motor wheel.
Furnace blower wheel noise.
If you hear this noise turn off your furnace immediately to prevent any further damage to the furnace.
The blower wheel can be making the scraping noise for different reasons.
The motor itself can also become out of balance.
Here are some of the reasons your furnace could be making a funny noise.
Having one of our techs tighten the blower wheel can often resolve this problem.
Blower wheel loud clanking or scraping classified as a metal against metal sound signals a serious problem with the furnace s blower wheel.
Most likely the blower fan has become loose and is creating the sound by hitting against the blower house casing.
The blower wheel is broken and needs replacing.
The motor mount broke causing the whole blower assembly to drop and hit the housing.
The wheel may have become loose and is making the noise by hitting the blower casing.
A few blower wheel problems include.
If you hear this sound turn off your furnace immediately.
Have a pro take a look to avoid further damage to your furnace.
Get a professional to tighten the wheel.
Shut your furnace off if you have a compromised mount.
Thumping and vibrating sounds are the results of an unbalanced blower wheel.
Sometimes a broken blower wheel can also be the source of this distinct noise.
When your furnace blower wheel is broken it will make your furnace sound like metal scraping against metal and will really hurt your ears.