Hello Don;
My name is Peter. I am a retired field service appliance technician.
You need to purchase a multi-meter. This is a tool that will save you a lot of money in your self repair off all of your appliances. They Cost $20-25.00.
The two primary reasons your dishwasher may not start is your Bi-Metl thermal fuse and the door switch.
1.) Bi-Metl Thermal Fuse:
This is a thermal safety device that installs in the console. When the temperature inside the dishwasher gets too high, the bi-metal fuse burns out and breaks the circuit that allows electricity to flow to and from the main electric control board.
Substitution Part Number: W10258275 - Cost: $25.00
It is located next to your control board. Caution: Before touching you control board ground your self by rubbing your hands on bare metal. Static electricity will knock out a board.
a.) Turn power off at the breaker box.
b.) Disassembly the control panel to access the thermal fuse.
c.) Disconnect the two leads from the thermal fuse.
d.) With your multi-meter set on the lowest Ohms (Omega Symbol), put one meter lead on each contact.
e.) If your get a reading other than, '0' then the thermal fuse is bad.
2.) Door Switch:
This is located in you door handle assembly.
a.) Lift the switch off the two retaining pins.
b.) Disconnect the two contact wires.
c.) Using your multi-meter the same as above - hold the switch button in with the two meter leads on each contact. Here, you also are looking for '0' Ohms if the contact switch is good.
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