Author Topic: Pumps in American Dishwashers  (Read 3338 times)

Offline Juan

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Re: Pumps in American Dishwashers
« Reply #10 on: December 14, 2009, 02:56:15 PM »
Hi!

Thank you guys for your help!

I have checked the following link:

http://www.repairclinic.com/Dishwasher-How-Things-Work

It says that most American dishwashers use 1 pump. Does this mean that the trend will also be 1 pump? What do you think the trend has been over the years?Have companies switched from 2 to 1 pump or viceversa?

This article confuses me a little bit...

Juan

Offline Juan

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  • Member Since: Dec 2009
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Re: Pumps in American Dishwashers
« Reply #11 on: December 17, 2009, 04:59:05 AM »
any clue about this article...

Offline Repair-man

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Re: Pumps in American Dishwashers
« Reply #12 on: December 17, 2009, 07:12:42 AM »
Here is the way it has been historically. American dishwashers were originally made with one motor/pump assembly which both washed and drained the unit. This was true all the way past 1990 on most brands. They contained a reversing motor.

Only GE made a one-piece assembly and still does, but the motor does not reverse on these.. (wd26x10013 for example)

Most all of the new models made after 1998 by other manufacturers now have a separate electric drain pump which is not part of the wash motor. Non-reversing motors are cheaper to make, hence the change. The drain pumps on new models are quite small and just strong enough to pump water out while saving a lot of energy in the process versus using the main motor.
« Last Edit: December 17, 2009, 07:25:23 AM by Repair-man »
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