Question about Rainbow E series Canister Wet/Dry Vacuum

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Have a Rainbow SE passed down from my Mom who bought it used.Never any trouble, haven't used it for couple of months. When I turn it on now , the motor hums, but doesn't suction. Was afraid to keep it running as I didn't know if the motor was locked or what. Can you advise if there is any home repair I might attempt?

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I believe the motor on this unit has brushes. These are little conductive pieces that provide electricity to the spinning motor windings. They wear out over time and need replacing.

I have found a link online that will show you how to disassemble, but it may not be the same model you have. Good luck.

Posted on Jan 16, 2011

  • richyoung Jan 16, 2011

    Sorry, the link is:http://www.thomaspenrose.com/diy_rainbow...

    BTW, this describes replacing the motor bearings, which could also be your problem.

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Steps to take before assuming the worst:

1. Make sure the latches on either side are locked.
2. You may have it too full of water. You should only fill it no more than 1/4" below the bulb in the center of the water container.
3. Make sure the Hepa filter is in good shape. If there is no air getting through it, than that may be the problem. If the filter is clogged, DO NOT run the vacuum! It will burn the motor up.

Jim

Posted on Oct 03, 2010

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Posted on Jan 02, 2017

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http://geeksquad.fixya.com/ThreadView.aspx?prdid=19674&thid=528929
Rainbow SE makes Squealing Noise when switching it...
Posted by ray_s51 on Apr 20, 2008
My Rainbow SE works and runs strong but when I switch it on and off for approx. 20 to 30 seconds the motor makes a loud squealing noise. Do I need to oil something or what? Nothing smells, it does not make the noise all the time, but it does more often than not. Thanks

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Rainbow E Series Canister Wet/Dry Vacuum.

The Rainbow has 3 fans in the bottom of the motor and if they are weak they will make noise from the motor unit. Watch out… the repair of the Rainbow may exceed the cost of a new motor of which will solve your problem of noise and separator --- compare the cost and the labor and make a decision. The separator is part of the armature, the separator should be able to be removed and that might be one of the things making noise. As normal maintenance the separator should be removed and cleaned after every use and re-installed, then place a newspaper or towel under the motor unit and turn on the Rainbow and spin the moisture out of the motor unit. This should be done every time you use it. If you have further questions please feel free to contact your local vacuum cleaner dealer. . So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
The Rainbow / RexAir Factory phone number is listed below:
http://rainbowvacuum.com Customer Service
1-248-643-7222 Monday thru Friday from 9:00 am to 5:00 pm EST

Thanks, Don the Vac Man
Go Ahead. Use Us.

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