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Maytag MDB7100AWW no cleano  Rate Topic 
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 Posted: Wed Feb 27th, 2008 10:41 am
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saxman
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7 yr old dishwasher is not cleaning properly, leaving some guck and dirty dishes and some soap left in dispenser, yet sounds like it is goin thru the cycles...took apart the bottom arm and filters, cleaned, still no luck...there was a little disk sticking out a bit out of the assembly when I took it apart, dunno if that was an issue...guessing either water spray is reduced somehow or something not spinning below...ideas ? 

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 Posted: Wed Feb 27th, 2008 08:55 pm
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Trying to help
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Make sure the arms are clear and that the lower one is not split.  Grab the ends and give it a little twist like you are wringing out a towel and make sure the seam does not separate.  You stated you checked the filter and cleaned them, did you go all the way down to the round filter ring with the 4 armed backwash arm in the middle of it and did you clean that white arm as well?  Then check the water fill amount.  On this unit, you should be up to the bottom of the heating element at the 9 and 3 O'clock positions.  If it is not, put the unit into fill (from an empty tub) and watch the float as it fills.  Does the board time out prior to the float rising and stopping the water, or does the float stop the fill?  On this model, not all but this one, the float should be satisfied stopping the water prior to the board starting the motor.  I am a little worried about the " little disk sticking out a bit out of the assembly".  Can you describe it better (picture) and tell us if you put it back or removed it.     



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 Posted: Wed Feb 27th, 2008 10:13 pm
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saxman
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thanks...there is a flat plastic disk maybe 2 1/2' diameter that is loose, sits underneathe the beige/yellowplastic turbine/agitator/whatever you call it that fits over the motor shaft..has 3 small holes in it and no idea what it does...I'll check out the other items and check back

Last edited on Wed Feb 27th, 2008 10:26 pm by saxman

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 Posted: Thu Feb 28th, 2008 12:10 am
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RegUS_PatOff
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what # ?

MDB7100AWW PUMP & MOTOR parts list & diagram

 

Attachment: W0703632-00003.png (Downloaded 35 times)

Last edited on Thu Feb 28th, 2008 12:15 am by RegUS_PatOff



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 Posted: Thu Feb 28th, 2008 11:15 am
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saxman
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thanks for the diagram! and of course that disk is nowhere to be found...and I'm not missing any tupperware and small children...and my dog does not like the inside...so will try to match things up and take it out if it doesn't belong (unless it broke off a nother part?..I thought I found it under number 11...

Last edited on Thu Feb 28th, 2008 11:18 am by saxman

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 Posted: Thu Feb 28th, 2008 09:15 pm
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saxman
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so the disc or puck (if you played air hockey you'll know what I mean) was sitting on top of the impeller halfway out of the discharge housing assembly...same colour as the discharge housing...i wonder if it broke off the the top of the inside of the assembly???the inside top shows plastic swirls jutting out and maybe this disk covered the top of these...and how critical is it?

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 Posted: Thu Feb 28th, 2008 09:24 pm
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Trying to help
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The disc helps pressurize the system(picture and part below).  I have never seen one break!!  You do need it partner.  Did everything else check out??  

http://www.repairclinic.com/referral.asp?R=154&N=895999



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 Posted: Thu Feb 28th, 2008 09:29 pm
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saxman
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is it held on by a screw? the disc to the rest of it? guessing not as there is a top screw for other things...

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 Posted: Thu Feb 28th, 2008 10:57 pm
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saxman
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the backwash or rinse arm had a lot of white crud,,,

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 Posted: Sat Mar 1st, 2008 06:38 pm
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saxman
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sho enuf - got a new discharge upper assembly from Maytag here - $9- moved the gasket over - installed and woo hoo... seems to be all good !  A beer will be opened to celebrate !

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 Posted: Sat Mar 1st, 2008 06:51 pm
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RegUS_PatOff
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:pint:



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 Posted: Sat Mar 1st, 2008 11:30 pm
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Trying to help
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I have never seen one (or heard of one) coming apart like that.  Nice easy cheap fix and you're up and running.  Nice description of the air hockey puck, once you said that, I knew what the heck you were talking about!:dude: 



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