Question about Rainbow E series Canister Wet/Dry Vacuum

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A problem. There is this littille mechanism on the top of my rainbow E vacume motor it is making a lot of sparks when it spins and there are two peices that have springs in them that are pushing like two flints i think. that are tuching the spinning thing. as you can tell i dont know what any af this stuff is called so please work with me.

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  • 1,673 Answers

Sounds like the carbon brushes. If they are sparkng, then either they are bad or the armature is bad, possibly both.

Posted on Feb 26, 2008

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Rainbow e2 will not power on no smell just turned itself off motor spins freely


Try turning it off and on a few times. They have a lot of trouble with the on/off switch.

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Vacuum will not come on even though power switch is on.


Rainbows draw a lot of power. It may have tripped the circuit breaker for the receptacle you have it plugged into. first make sure the receptacle is ok, especially if it is plugged into a ground fault receptacle. . Next, unplug the vacuum, take off the tank and see if you can spin the impeller by hand. If you can spin it, the motor is free. If plugged into a good receptacle and the power cord is not cut or broken and still does not run then the motor is bad. it could be the brushes in the motor(which can be replaced), or the armature is shorted out, meaning you need to replace the motor.

Jan 17, 2011 | Rainbow E series Canister Wet/Dry Vacuum

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Vacum works on low but not on high??????


I hate to tell you, but your computer is most likely the problem, and is out on your E2 two speed vacuum.

The only solution is to get a new computer for it.

It is realy not worth replacing it, because it may also be the motor. The E2 is a very high tec system, and is not like any other hacuum. When you turn it on, you are not turning on the vacuum. You are turning on the computer, which is controling everything.

I could supply you with another canister, if you are interested.

If you have any more questions let me know. I am a Rainbow seller, and a Rainbow expert also.

Thank you,
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Jun 06, 2010 | Rainbow E series Canister Wet/Dry Vacuum

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Rainbow Vacs Will other D4 water bowls fit a D4A


Yes, but just the D4 variety, not D2,D3, or E

The main thing to remember about this great vacuum you have is to always dry out the bowl or at the very least keep the bowl separate from the vacuum (top). The D4 motor was and still is the biggest and best motor EVER put in a vacuum, but if you let the moisture sit on this motor by not drying the bowl then what will happen is the spring loaded carbon brushes that make contact with the motors armature will ever so slightly 'stick to the armature. Then when you go to turn the vacuum on the motor will not even have the needed chance to begin it's rotation.Electricity in a motor has to move it's counterparts or it will instantly short circuit. Now believe it or not, as powerful as this motor is, if it can't move it will short. Ironically, you can do one thing ritualistically each and every time you use you Rainbow so that what I just described will never happen:
Under the top part f the vacuum you will see a pot pie shaped thing with a nut in the center. This is the heart of the Rainbow and it is called the separator. Very simply grab it and give it a spin. That's it! Now you have done the one and only thing to be sure the motor is not going to stick. Yep it was that simple, but if I didn't explain it's importance you would never know why they quit making this great vacuum and instead make the latest and supposedly greatest 'brushless' model E2. Stupid in my opinion. All they had to do was put a message on the top somewhere saying, " Before operating, unplug 110V plug, flip top and spin separator by hand to be sure it is free"

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1 Answer

I want dismont the rainbow vacum cliner to see the engine


Finaly, I find the screws and I desmont the vacum cleaner. Afther that I find in short circuit the rotor of the motor. Now I must fix the rotor.
That it.
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Leon NICA

Jan 10, 2009 | Rainbow E series Canister Wet/Dry Vacuum

1 Answer

Rainbow E series Model E2 will not start up!


Unfortunately that large beige box that was resting on top of the motor is the computer that controls the 2 speed function of the vac.

The first thing to check is motor it's self, there are 2 brush 'boxy things' at right angles to the armature (the part of the motor that spins). Check those and make sure that the brushes are evenly worn and in contact with the motor. Next see of there are burn marks on the motor itself - it should be copper in color.

If this looks fine, sorry to say, the computer might be the issue ... not cheap.

Hope this helps

Let us know, might have other ideas

M

Sep 26, 2008 | Rainbow E series Canister Wet/Dry Vacuum

1 Answer

Rainbow se trying to fix


small red washer on top - motor is the top. Also on only everyother fan spins.
Small fan with the small hole up
Barrel Spacer
Large Fan with the the hole down
Hour Glass spacer - this spacer has a washer welded to the bottom of it - spacer down!
small fan hold down.
Lower motor housing

Hope you changed the bearing while you were where here.

Give it a spin by hand and make sure there is no grinding.

Hope this is right, doing it from memory, have a picture at work.

Good luck

M

Sep 23, 2008 | Rainbow E series Canister Wet/Dry Vacuum

7 Answers

Rainbow vauccum D4C model


I think you made mistake of connections when reassembling the unit or place motor in wrong direction. Please open it again, if you opened it before, and check above said hints.

Sep 18, 2008 | Rainbow Vacuums

1 Answer

Older Rainbow Noisey


http://geeksquad.fixya.com/ThreadView.aspx?prdid=19674&thid=576894
Older Rainbow Noisy
Posted by Capt_Troll on May 06, 2008
I Have an Older Rainbow (i think it's a d4)
my Old roommate ran it once without water.
it Still works now (with water), but
it's Very noisy on start up
Also I Can't seem to remove the separator (no instructions) but the nut at the end of it appears to free spin the motor when i try to turn it.
Can I Take this apart and Clean/lube it? And if so how? Or is this thing on its last legs? 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 D4 is an older Rainbow Vacuum and the part where 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. Other wise the Rainbow has 3 fans in the bottom of the motor and if they are weak they will make noise from the motor unit as well. Watch out… the repair of the Rainbow D4 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. 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.

May 06, 2008 | Rainbow E series Canister Wet/Dry Vacuum

1 Answer

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I think what you are talking about are the motor brushes. If they are sparking alot, then they need to be replaced, but also a bad armature will cause this and replacing the carbon brushes won't help. In that case you would have to replace the motor. But I thing the E series has a 10 year warranty on the motor, so you may want to check on that as this motor is very expensive.

Jan 19, 2008 | Rainbow E series Canister Wet/Dry Vacuum

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