This is an update to my post here on 11/24/2011. KitchenAid dishwasher KUDE70CVSS2, 1.5 years old, "sanitized" light was blinking at end of sanitize wash, i.e. water was not heated up high enough to sanitize the dishes. Finally, it was repaired today, 2/8/2012, almost 11 weeks since it broke.
We had 8 service repair visits made by 4 technicians from 2 service repair companies. During this period, the printed circuit board was replaced twice. We were told our hot water supply was not hot enough by one technician who didn't come prepared with a thermometer. A different visit and technician with a thermometer measured it at 142 degrees, well above the 120 degrees the KitchenAid manual says is needed. We were told the problem was in our household wiring. That was a miscommunication between one service repair company and the extended warranty company. Then the entire washer unit with pump and diverter valve was replaced, today, the 8th visit, and the unit now sanitizes and works just fine.
Now I'll tell you how to navigate through the bad technicians, miscommunications and so on that I learned after being frustrated when the second service call did nothing to fix the problem. Inside the kick panel of the KitchenAid dishwasher is a large folded paper enclosed in a waterproof pouch. It a technicians "debug" sheet that describes how to operate and analyze the results of a built-in self test.
Yes, these dishwashers can perform a rather complete self test that concludes with a code indicating what the problem is. Read the sheet in your washer to understand the proper sequence of front panel button presses needed to begin the self test. But beware, the test in my washer can be run to either display the concluding results, or skip the display. You will need to run it in the display mode to read the results, duh. Duh, because the first technician kind of ran it in the other mode and never saw the result.
None of the other technicians even ran the self test. It takes about 27 minutes to run, and you have to sit and watch the lights flash so as to catch the final conclusion. Huh, KitchenAid? The technicians would rather just replace stuff than wait 27 minutes to find out what's wrong. But I ran it, not just once, but many times, and I always got error codes 4-1 and 4-4. And the documentation says that one of the causes of a blinking sanitized light is error codes 4-1 or 4-4. Duh again, only on the 7th service call did the technician say "let's see what 4-1 and 4-4 are" and the answer was an issue with the diverter valve, so he ordered a new one, replaced it on the 8th visit and the washer runs just fine.
So run that self-test, get the error codes, then insist the repair company fix the error reported by the self-test. With each technician, I point to the KitchenAid refrigerator I bought in 1987 that still runs well, and, each has chirped, "don't buy another KitchenAid refrigerator". I'm not buying another KA dishwasher either!
