Burning smell from motor...what needs replaced?

The response by Lynnette is in reference to the power nozzle....if you are having this issue with the main unit, then it could be the armature is starting to go bad. Have your Rainbow in front of you and give us a call. We can walk you through some steps to narrow it down.

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If it smells like burning rubber, the belt is probably worn and slipping. If it's another burning smell, your motor windings are probably shorting and will burn out soon

Hi,
Check your filter and also check that nothing got pulled into the motor...otherwise the motor is burning up and will need to be replaced... probably cheaper to replace the whole vacuum..

heatman101

check brush the belt may have popped off and is binding or brush is binding clean brush of any debris thread/hair wrapped binding brush and check and or replace belt

Hi I would suggest that the burning smell and the noise will mean that the motor is burnt out. You can get them pretty cheaply from the internet and they are quite easy to fit.

If the motor sounds scratchy and is making a burning smell, or sparking you will need to replace the motor or the entire vac. Carbon brushes will rarely fix this as it is a high RPM motor

Burning rubber smell means the brush belt need attention. Make sure the brush is turning freely and replace the belt

If the noise is coming from the canister motor, you probably have bad motor bushings. I had the same problem, replaced the motor and all was fine - only for one year. The problem is back and is due to the fact the motor is very high speed (to get good suction) and should be made with bearings, not bushings. I will not be repairing a second time as a $70 motor annually is a bit pricey, and yes it will get VERY hot. I will buy a new vacuum - not another Kenmore.

Had a burning smell coming from the vacuum. Opened it up and noticed sparks in the motor area. Ordered a new motor from Sears and replaced it. Works great now.

Check the carbon motor brushes, there might be arcing on the armature. New brushes may help if the armature is ok.