Thread Number: 17266
Rainbow Platinum (Blue)
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Post# 185537   6/14/2012 at 20:29 (2,854 days old) by eurekastar (Amarillo, Texas)        

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I recently picked up this Rainbow E2 Platinum (Blue) for a pretty sweet price.  It had a foul smell when I fired it up, which made me suspect it was not properly cared for.  The source of the odor was the HEPA filter, which was filthy.  The fan chamber on the motor was filthy too.  Next, I removed the separator and the fan inlet was filthy.  So I made the decision just to replace the motor since it was less then $100. 





Post# 185538 , Reply# 1   6/14/2012 at 20:33 (2,854 days old) by eurekastar (Amarillo, Texas)        

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Cosmetically, it was in excellent shape.  So after I replaced the motor and cleaned it up, it looks almost brand new. 


Post# 185539 , Reply# 2   6/14/2012 at 20:36 (2,854 days old) by eurekastar (Amarillo, Texas)        
Noise Level

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There has been some conversation on the forum regarding noise levels in Rainbows.  This model is rather quiet because of the sound insulation surrounding the motor.


Post# 185540 , Reply# 3   6/14/2012 at 20:38 (2,854 days old) by eurekastar (Amarillo, Texas)        

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Insulation is even provided in the cap.


Post# 185542 , Reply# 4   6/14/2012 at 20:45 (2,854 days old) by eurekastar (Amarillo, Texas)        

eurekastar's profile picture

View of the motor with the computer module removed.  Opening the vacuum and removing the motor is actually a very simple procedure.  There are no longer any screws to contend with!  Just a series of clips.  All that's required to get to the motor is a flat blade screwdriver that's slipped into the right spots to release the clips. 

 


Post# 185543 , Reply# 5   6/14/2012 at 20:48 (2,854 days old) by eurekastar (Amarillo, Texas)        
Fail Safe Question

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So now I have a question for those who own a 2 speed.  When I place my hand over the hose end to cut off airflow, the motor shuts down.  But as soon as I remove my hand, then it starts back up again.  Is the motor designed to do that as a fail safe precaution? 


Post# 185547 , Reply# 6   6/14/2012 at 21:06 (2,854 days old) by williamr1248 (USA)        
Rainbow Platinum Blue

Bill,
Just tried it as mine was already running in the air clean mode. Mine does not shut down when I place my hand over the hose end or over the suction inlet.
Mine is the black machine.


Post# 185552 , Reply# 7   6/14/2012 at 23:11 (2,854 days old) by mark40511 (Lexington, KY)        
Mine doesn't shut down

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Either. It's the gold 2 speed with insulation and computer.



Post# 185592 , Reply# 8   6/15/2012 at 09:34 (2,854 days old) by eurekastar (Amarillo, Texas)        
Old Motor

eurekastar's profile picture

It's pretty clear that the previous owner didn't change the water with much frequency nor remove and clean the separator very often if ever. 


Post# 185594 , Reply# 9   6/15/2012 at 09:38 (2,854 days old) by eurekastar (Amarillo, Texas)        
The inside of the fan housing

eurekastar's profile picture

Below the spacer is the location of a bearing.  Dust and moisture can pretty easily get into it when the vacuum is not properly cared for. 


Post# 185595 , Reply# 10   6/15/2012 at 09:45 (2,854 days old) by eurekastar (Amarillo, Texas)        

eurekastar's profile picture

The bottom of the motor housing contains a small circuit board.  This motor has no carbon brushes, so I'm guessing this circuit board has something to do with controlling the electric current so that the armature will spin.  It appears that the circuit board is held in place by a small torx screw.  I don't think I have a torx bit that small, so it will have to stay in place for now. 


Post# 185597 , Reply# 11   6/15/2012 at 10:26 (2,854 days old) by mark40511 (Lexington, KY)        

mark40511's profile picture
Yet another filthy Rainbow. I think this is the main reason they get a bad name because this is probably more common than not with users. You're braver than I am taking a 2 speed apart

Post# 185736 , Reply# 12   6/15/2012 at 22:51 (2,853 days old) by eurekastar (Amarillo, Texas)        
@ Mark

eurekastar's profile picture

It's far simpler than you know.  Getting to the motor requires only a flat blade screw driver to dislodge the locking clips which hold it together.  It's very well designed from the stand point.  Servicing the motor is also very straightforward.  Remove four screws that hold on the lower fan housing and and the nut on the armature shaft and you're in.  You can do it.  All that's needed to service these motors is the replacement of bearings.  There are no carbon brushes to replace and seat.  Plus, the computer controller comes off the top of the motor and snaps back on quite easily and all the wires are installed with harnesses.  No screws.  No soldering.  Very simple to do. 


Post# 185830 , Reply# 13   6/16/2012 at 11:25 (2,853 days old) by rainbowjoel (Dexter NM)        
Poor Rainbow.

I did same thing my Rainbow 2 speed. the fan was dirty alright. lol




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