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Hello from JA My name is Woody. I will be glad to assist you today. I have been servicing ALL Major Brands of Appliances for 35 Years, and have over 100,000 in home repairs and over 80,000 internet repairs under my belt.
Can I please have the Full model number of the unit to better assist you ? and 4000 is not a Model number.
open the dishwasher door the model /serial tag should be on the tank face frame.
When you select any cycles or options ,do you get any lights on the door?
And do you have a Volt-Ohm meter and know how to use it to be able to do any component or voltage tests?
No need to remove it from it`s location but you will need to take the inner door apart to test the door switches to see if they are giving the control board run voltage to operate the dishwasher components.
no manual ,let me see if I can find you a video!
This is as close to your model .
And your just going to open the door and test the door switches so disregard after about 1 min 35 seconds.
Test voltage to and from the switches on the Black and White wires connections looking for 120 volts A/c after you press on the door switch as if the door was closed.
no problem you have two black and two white wires you will have one black wire that has constant voltage to one of the white wires ,then once you press the switch you should have voltage on the other black wire to the other white wire. looking for 120 volts a/c
do you have voltage to and through the door switches?
Do you still need assistance on your question?