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After doing a few of these dishwashers for wires fusing to the sound deadening material, I thought I would try some thing....A customers asked if there was anything that could be done to prevent this from happening again..I said if we had some thing that was thin and could take some heat........As I am talking,I look at has dish drying rack and what do I spy??? It was a cutting mat, a kind of nylon/ UHMW material..........So I stuck it behind the wires....Dropped right into a small slot at the door stiffener...... Wire repair, CTG51 style.....AHH.........L.G...life is good...for techs that is...
I have dealt with a fair number of Bosch dishwashers and have changed maybe one drain pump. Much more common problem is stuff clogging the feed to the drain pump, and/or stuff in the outgoing vent to the drain hose.
Unscrew the first filter, remove the metal plate, and then remove the mesh cylinder. Take a T15 and remove the small screw that holds the drain pump cover. Take a bunch of paper towels and a thin flat blade screwdriver and get all the popcorn seeds and other junk out of the way.
Now take a one foot long cable tie and run it up past the drain pump impeller into the tiny hole next to the impeller. This is the very small hole that faces the back of the unit. Keep moving the cable tie back and forth until you hear a "glug." You'll probably see a really disgusting lump of fat come out. Clean that up with a paper towel or a shop vac.
Put everything back together and prime with about a half-gallon of water. Hit "cancel-drain". You should hear the water gurgling as it flows out.
Remove the spray arms.
Soak them overnight in a tub of CLR.
With the spray arms removed,run the dishwasher so that water circulates without being restricted through spray arms.
This may dislodge some crud that can be wiped out.
Re-attach the arms and start the unit.
Once it fills and starts washing add 1 quart of white venegar to the water and let it compleete the cycle.
That is the general signs of a bad touchpad. If the tech sheet has a keypad matrix then look for what two ribbons are for the "CANCEL" key. Disconnect the touchpad ribbon cable and short the two pins that are for cancel on the board.
Generally if you can get the control to do a 2 minute drain and stop when cancel is pushed then the control board is OK.
Most Whirlpool boards will also defualt to drain if you remove power, disconnect the touchpad ribbon, and then reconnect power with the door closed. Lets you know that the control is sensing a missing keypad = control board probably OK.
Touchpanel part link ==> http://www.repaircli...8573675/1180871
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