Maytag dishwasher wu284 will not advance thru the cycle. It will fill with water and heat it but not progress to the next cycle. If the knob is turned manually it will advance to the next cycle and perform that cycle until the knob is advanced again. I see in the parts list the timer and timer motor are two separate parts. The timer is no longer available from Maytag. I have done continuity checking on the timer motor with a multimeter and it seems to check ok. I do not have a repair manual and did not check anything else. Is there another test I can perform to prove the bad part is the timer motor? I do not want to just swap parts to see if they will work. Thanks in advance for any input.

I saw on another website that the proper procedure for continuity checking is to unplug the wire clips before checking the timer motor with the multimeter. It did not pass the test this time so I ordered a timer motor. The installation of the timer motor is very simple (two screws and two wire connectors). After the timer motor was installed the dishwasher is back to normal.