I recently acquired a free Whirlpool GU1200 dishwasher, which the prior owners said worked, but wasn't cleaning well any longer. I'd like to get this DW running again. Upon closer inspection, I saw that the heater element had burned out at the spade of the element and terminal of the supply wire, as evidenced by the burned wire and nut. I have purchased a new heater element and nut and am ready to try to repair this puppy. However, I'm unsure of two things:
1. The insulation around the wire is burned. I plan to clip off the terminal and about an inch of the burned wire (clip off all the burned stuff, in other words), and attach a new terminal (and some add'l wire if needed). Given that the insulation around the wire has been burned, has this compromised the integrity of the *entire* wire? Is it ok just to clip off the affected section of the burned wire? Or do I need to replace more (or all) of the wire?
2. I'm assuming that the heater element just died and caused the short which burned the nut and wire, as seen in the attached photo. Is that a reasonable assumption, or is there some other culprit that I should investigate? I'd hate to put the new heater element in only to have it burn out immediately due to some other un-diagnosed issue.
Thanks for any thoughts!