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Maytag MDBH975AWW Not Starting
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Model: MDBH975AWW Brand: Maytag Age: 1 - 5 years
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PsychoPop  
#1 Posted : Monday, March 8, 2010 5:47:20 PM(UTC)
PsychoPop

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Here's what I've already troubleshot:

Door Switch Voltage Good
Membrane Switches Continuity Good
Circuit Board (w/Door Switch Engaged) Power at Motor Start (YL - Pin8) Good - Read from Common Door Switch to Motor Start.

Problem occurred after unit started normally, went through first cycle to rinse, then stopped without notice. Circuit Breaker operating normally.
Cannot get unit to Power Up -- But Voltage at Ground and Motor Start, No LED's or Lights.

Help? Any advice? Circuit Board? :confused:

PsychoPop
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magician59  
#2 Posted : Tuesday, March 9, 2010 7:12:27 AM(UTC)
magician59

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Did you check the electrical hook up under the machine?
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PsychoPop  
#3 Posted : Tuesday, March 9, 2010 8:52:09 AM(UTC)
PsychoPop

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Thanks for the reply...In what way are you asking me to check? I do have voltage at the circuit board and to the door switch.

What do I need to check under the unit -- I can see a direct connect to the electrical box of the dishwasher from the romex out of the wall?

Thanks again for your reply and any help.
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magician59  
#4 Posted : Tuesday, March 9, 2010 10:05:46 AM(UTC)
magician59

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Open up that box and make sure the connections are secure. A loose ground or neutral can cause a lot of wierd symptoms.
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PsychoPop  
#5 Posted : Tuesday, March 9, 2010 10:26:11 AM(UTC)
PsychoPop

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I'll check that out and see if anything "shakes" loose...

Thanks Again
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PsychoPop  
#6 Posted : Saturday, March 13, 2010 9:48:19 AM(UTC)
PsychoPop

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Checked the electrical box -- everything checked fine.

Metered out switches again to see if I am getting continuity between membrane and control board -- At "START/CANCEL" Switch I am reading about 8K ohms; according to schematic, should be reading 10K.

Would this stop the unit from "booting" up? I get no power to the LED's even though I have power to the unit.

I read power to the Motor at the circuit board, but get nothing on the membrane for lights or indication of power when door switch engaged.

Is it the circuit board, or the membrane?

Thanks
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PsychoPop  
#7 Posted : Saturday, March 13, 2010 12:50:20 PM(UTC)
PsychoPop

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Is there an Internal Circuit Breaker or Fuse for Model MDB975AWW?

The way it stopped working right at the beginning of the cycle makes it appear as though something internal "popped" and caused the power fault.

Thanks for any replys.
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