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The touchpad buttons wont work. I have power going to machine. is it the touchpad or the control module thats bad?

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The biggest thing to check is the door switch ,cause if the door switch isn't working ,nothing works-- 90% chance that is your problem.
Hard to tell from what you told me ,but I would make sure it's not unplugged in the back(the button board). Usually it's
the component that takes the most abuse. Ask yourself when did it stop and and what did you do to make it happen or why which will help in the diagnosis. Make sure you have voltage to the control board which could be a problem as well. If you have had a power outage it could have took out the rectifier which breaks the voltage down to dc or if you are lucky there is a fuse for the dc voltage look for it after on or before the control board. Most boards run on 12v or 15v just check and that will get you started.You can test the buttons by a continuity or resistance check just see if the two wires are making when you push the button all the way back to the control board,wiring goes bad as well. There are relays on the control board so push a button and tap a relay (looks like a cube) and see if it comes on or push the button and see if you hear a click of the relay on the control board.

Posted on Apr 05, 2011

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Touchpad and Control Panel


If the microwave buttons don't work the touchpad and control panel assembly are probably defective.
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If the microwave buttons don't work the touchpad might be at fault. Generally speaking, if the dishwasher display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.
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Without spares to change and test with, you wont be able to diagnose 100%

Usually when there is a problem, a series of lights go solid on the control panel and the machine beeps to alert you to a problem and this is a fault code, but if nothing is showing at all, then I have to lean towards the display module underneath the touchpad. Especially considering it wont illuminate.

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Touchpad and Control Panel If the microwave buttons don't work the touchpad and control panel assembly are probably defective.

Touchpad If the microwave buttons don't work the touchpad might be at fault. Generally speaking, if the display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.
ser Control and Display Board If the microwave buttons don't work the main control board is most likely defective and will need to be replaced.

Main Control Board If the microwave buttons don't work the main control board is most likely defective and will need to be replaced.

10_2_2012_12_33_23_pm.gif

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1 Answer

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Hi, Does not start as in you plug the machine in at the wall and switch it on and it wont start? or as in the machine turns on but pressing the start button wont start the machine? If its not starting when you switch it on at the wall then in all probability its your main controller module that has blown. Replacing the module will incorporate a great deal of money as any power supply would for any appliance due to it being the heart of the machine.
In the case that the machine turns on but wont start when pressing the start button indicates to me that the machine may have a problem with its display module which in turn will cost a great deal of money being the brains of the machine either way its going to cost a great deal of cash
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