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Kitchenaid dishwasher KUDP02IRWH2 dead


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7 replies to this topic

#1 danw

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Posted 28 November 2010 - 12:37 AM

4 year old Kitchenaid dishwasher KUDP02IRWH2 is dead - no lights on the keypad display.

The dishwasher's junction box has 120Vac, so it isn't a circuit breaker.

The power up circuit is:
Posted Image

I need to access the bi-metal switch and the door lock see if either is open circuited.

The parts list show components in the front door assembly, but no dotted lines indicating relative positions:
Posted Image

#6 is the bimetal thermal switch
#12 is the door switch

How do I access the switches? From the front somehow? Or does the read panel need to come off? Or what?

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#2 RegUS_PatOff

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Posted 28 November 2010 - 01:01 AM

# 6 is the Bi-Metal Thermal Fuse

# 12 is the Door Switch (if plastic Tub, Door has two Switches)
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#3 BrntToast

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Posted 28 November 2010 - 10:51 AM

the bi-metal is attached to the control board
door switches are self-expanitory, they are on the door latch
remove screws around the inner door liner to access these components


Edited by BrntToast, 28 November 2010 - 10:52 AM.

The only stupid question is the one not asked

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#4 Samurai Appliance Repair Man

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Posted 28 November 2010 - 07:32 PM

Nice job posting the pics, Dan! B)

#5 danw

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Posted 01 December 2010 - 11:07 PM

Thanks for the advice.

The fault was the bimet fuse. The controller board runs OK when its powered.

An FYI,
pump motor current draw - 1.5A
washer motor current draw - 7.5A
heater current draw - 4A

Measurement by clamp-on analog ammeter of early '80's vintage.

Is a service manual for these Kitchenaid branded Whirlpools available? Something with disassembly info? (I'm willing to pay for service documentation).

Dan

#6 Samurai Appliance Repair Man

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Posted 01 December 2010 - 11:10 PM

Check out this link to get hooked up with the manual scene==> http://applianceguru.org/apprentice/

#7 kdog

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Posted 01 December 2010 - 11:11 PM

Those Bi-metals come with new wiring and connectors, make sure you replace all of the parts in the kit to avoid poor connections
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#8 danw

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Posted 29 December 2010 - 12:30 AM

I got curious as to the current draws for a dishwasher so I got a current transmitter and recorded an entire dishwasher cycle. The scale is 0-10 amps AC. The time axis is real clock time, not elapsed time.

Apparently the dry cycle current is regulated, as apparent from the decay curve. Probably temperature sensed with the current regulated to maintain a temperature setpoint.

For reference the cycle diagram is also shown.

Posted Image

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