Question about Bissell 3750 Lift Off Bagless Upright Vacuum
Nothing happens when I switch the brush on. Trying to find out if its a motor or a switch problem.
Posted by Anonymous on
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Posted on Jan 02, 2017
If you have a rubber smell, then the belt is slipping, does the brush roll turn freely while holding the ends? If not then replace it, part #2036619, if it is ok, then the belt has strectched and is slipping under load, part # 2106679, Style 8.
Posted on Jan 21, 2008
Brushes are switched on by lowering the handle which activates a micro-switch located inside the lower part of the machine. Vacuum must be running as well. The DC power for the brush motor comes from a Bridge rectifier located on the PC board located in the handle. I have drawings that might help you.
Posted on Jan 18, 2009
I had this same problem. There is a screw that holds the top handle and the lower handle "together". If this screw is not TOTALLY tightly screwed in, this will cause the contacts in the switch to BREAK contact, and therefore one or BOTH motors may not start, or cut in and out. This was the fix for me.
Posted on May 12, 2010
Hi there if u have already replaced the brush motor and the brushes stil aren't rotating, you wil need to also replace the circuit board that is located in the upper part of the machine after u take the 5 screws out the back, hope this helps, I repair bissells for a living so any problems email me, email@example.com
Posted on Feb 08, 2011
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