I’ve read several postings with the same problem as mine, the washer simply quit working and has no power and water remains. It seems to be a thermal fuse from reading the other posts. However, I can’t find a thermal fuse for my Whirlpool Quite Partner III model number GU2500XTB7. From what I understand it is supposed to be on the control panel and I can’t find it, also can’t find one on the parts break down. Any suggestions?
Cannot find info on a XTB7, the following is for a XTPB7
Replacement parts for WHIRLPOOL GU2500XTPB7 Undercounter Dishwasher | AppliancePartsPros.com
Fuse is Item 6 in Section 2
Here is a tech sheet
http://www.servicematters.com/docs/wiring/Tech%20Sheet%20-%208572216.pdf
Although it is a thermal fuse high current can also blow it so check that the components measure OK for resistance.
Also be sure to check the vent. If it is stuck closed it could cause a heat build up, this depndes on the unit see the tech sheet.