Maytag dishwasher won't cycle

Dishwasher Repair
1

The machine will fill and stop. The timer will cycle through to the end, but there is no function, no motor noise, etc.
There is just a tick tock clicking noise in the door panel every couple minutes.
At the end the CLEAN and Keypad 2 lights will blink steadily.
The wiring harness in the door was recently replaced by Maytag under a recall.
When I try the DRAIN/Off button the display shows cycle time and I can hear a relay clicking on the circuitboard in the door controls, but the pump motor does not come on.
I suspect maybe a failed relay on the circuit board or failed motor. There is some (heat) discoloration near two resistors on the cicuit board.
The motor armature spins easily (not jammed).
Any ideas?

2

Remove the bottom panel and check if the power is coming to the motor.

If there is power then replace the pump & motor assembly.

If there is no power then the control board has to be replaced.

To find the right part number for the pump & motor assembly I need you to post the serial number of the dishwasher.

Gene.

3

Thanks for your prompt reply, Gene.
If I unplug the lead to the motor and check there?
If I read the diagram correctly…
At the start of the cycle, after fill, I should expect power across BU and GY leads?(WASH)
S/N is 15899926yu

4

You can do the motor continuity test. From BU to all others suppose to be some resistance. If any of the motor winding is open - the motor is bad.

The power should come to the main winding as well as to the wash (BU & GY and BU & Y).

  • The part number for the pump & motor assembly AP403850

Gene.

5

Thank you, Gene.
You were absolutely correct!
No power at the motor plug-at either winding.
So, I went to the board. Figured I had nothing to lose, so I removed the cover of the power relay.
The points supports had warped enough that the contacts couldn’t close.
I just bent the support a little, and voila!
No more dishpan hands!
Thanks again! I will keep you in mind when it really croaks.