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The star buttom is unresponsive

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Dear sir: I have a whirlpool quiet partner ll,model du1100xtps1 about 5 yrs old.It current works only on drain&cancel setting.The

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  #1 (permalink)  
Old 10-09-2009, 07:13 PM
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Default The star buttom is unresponsive
Model Number: du1100xtps1   Brand: Whirlpool   Age: 1 - 5 years   

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Dear sir: I have a whirlpool quiet partner ll,model du1100xtps1 about 5 yrs old.It current works only on drain&cancel setting.The " normal" mode selection buttom and the "star" buttom are unresponsive.can you suggest the control panel or control board is bad? Thank you!


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  #2 (permalink)  
Old 10-10-2009, 05:38 AM
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Here are the parts
Replacement parts for WHIRLPOOL DU1100XTPS1 | AppliancePartsPros.com

Here is the tech sheet
http://www.servicematters.com/docs/w...%208535451.pdf

Do not know what button is the "star" button but if it is the start button, you will notice in the tech sheet that the start and normal buttons have P1-4 as a common.
I would check the keyboard as outlined in the tech sheet.
The normal way to trouble shoot is check the keypad if it is OK then replace the control board. Note this is still a bit of a crap shoot but it does give you better odds of ordering the correct part.

Try the following first.

Unplug the unit
Open it up
Remove the ribbon cable from the keypad to the control board at the control board.
Clean the edge connector.
If it is the type where there is not a connector just the insulation is removed, it can be cleaned with a pencil eraser. Do not use an ink eraser as it is too abrasive.
Check the tracks in the ribbon cable for hairline cracks. A magnifying glass helps here.
Would not hurt to clean the connector on the board. Use electronics contact cleaner or isopropyl alcohol and a tooth brush. Be gentle and do not reconnect till all the solvent evaporates.
Reconnect everything and give it a try.

If you do not own a meter, I would suggest you purchase a one. You can get a decent digital multimeter for under $20.00. You do not need fancy though it is nice if the leads are a couple feet long.
If it saves ordering one unnecessary part it has paid for itself and you end up owning a useful tool.
Most places will not let you return electrical parts so if you order it, you own it.
A couple things to watch when measuring ohms and continuity
1. Always remove power from the machine otherwise you could blow your meter.
2. Always disconnect at least one side of any device you are checking. This eliminates the possibility of measuring an alternate/parallel circuit path.
3. When checking for closed contacts and continuity use the lowest scale (Usually 200 ohms). Then try higher scales. This scale is 0 to 200 ohms so if the device you are measuring is 300 ohms this scale would show an open circuit which it is not, you are just measuring outside the scale's dynamic range.

There is a good STICKY at the start of this forum about it's use.
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