[mcimcit1]

This problem has reoccured following resolution a couple of weeks ago, using your service. The dishwasher solenoid melts around the shaft.

[denman]

mcimcit1 - post a reply on your original thread, then the full thread will come to the top of the list

Am sorry to hear that the new solenoid also overheated

I only know of a few things that would cause this

1. Flapper valve sticking - you probably checked this when you installed the new one

2. Solenoid rod or linkage sticking - again you probably checked for ease of operation when you raplaced it

If the plunger is not pulled all the way down the solenoid can overheat

3. Age - but it was a new valve so can rule this out

4. Low voltage - unlikely as everthing else runs OK

5. Timer sticks in a drain mode - the solenoid is not designed for long use cycles
This is the most likely cause, sounds like this is intermittant so is a guess at best.

[mcimcit1]

Your #1 & #2 are interesting as it does make a noticeable sound when switching from drain to inflow - - how do I determine if the flapper valve or the linkage are not free enough? Your #5: Dishwasher went through 2 good cycles with dishes after I tested when new solenoid installed - - so is #5 a possibility?

[denman]

Just actuate the flapper valve/solenoid plunger up and down with your finger
Also just watch it when it is running, it should pull in fast and hard during the drain cycle.
It is normal for a solenoid to make some noise when it pulls it's plunger in

Contacts sometimes start sticking before they weld themselves together but again this is just a possibility.

[mcimcit1]

Is it also a possibility that the flapper is sticking in one position so that the solenoid will remain hot between uses? Also, can I do what you suggest above without a working solenoid?

[denman]

Is it also a possibility that the flapper is sticking in one position so that the solenoid will remain hot between uses?
No, the timer disconnects power to the solenoid between uses.

Also, can I do what you suggest above without a working solenoid?
Yes, remove the solenoid and actuate the flapper/closing mechanism manually.

If the timer is working correctly, it only sends power to the solenoid for a short time. The flapper is pulled down, timer removes power to the solenoid and it is then held down by the water pressure till the pump out is complete. When the water pressure drops (pump out complete), the springs on the flapper open it up, water fills the unit and wash starts.