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Dishwasher won't heat

Posted by appliancejon (My Page) on
Tue, Mar 19, 13 at 12:37

I have a Kitchen Aid KUDS30FXBL2 dishwasher, 14 months old. First problem was poor water aggitation. Replaced the whole pump assembly. Aggitation was then fine. Then had intermittent power failures. Traced power line in crawl space and found critter chew...replaced the power line with proper romex. Aggitation fine, but dishwasher wasn't heating well, not cleaning (was fine before the pump went). Tried Hi-Temp Scrub, Sani-Rinse, etc. Cycles go for the normal time, but insufficuent heat. Replaced the heater coil, thermistat and soil sensor thermistor. All new. Temp still won't go above 118-120F.


Follow-Up Postings:

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RE: Dishwasher won't heat

Have you called a repairman?


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RE: Dishwasher won't heat

You should be filling it with 120F water.


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RE: Dishwasher won't heat

Thanks for the follow-up posts. I have read about the low and high range for intake water. We have tried, as recommended, running the hot kitchen tap 'till it's hot. With this recommendation, will check actual temp of hot tap water. And no, I haven't called a repairman. But I have consulted a friend who is an actual appliance repair guy, and the local authorized Whirlpool repair shop has been very helpful with suggestions. This is a small friendly town. Next step is to run the diagnostic tests (had procedure literature sent to me today), and we'll see. Any suggestions are appreciated, and I will post further on this in case it helps others.


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RE: Dishwasher won't heat

On my KA (circa '05), if you run the Hi-Temp Scrub and the temperature does not reach 140f by the end of the heating cycle, it will throw a code and quit. Blinking lights. And it will not start until the code is cleared, which requires some magic words and weird finger gestures. Don't ask me how I know this.


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RE: Dishwasher won't heat

The codes/repair diagnostic chart are usually in a plastic pocket attached behind the kickplate if any wonders where they are.


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RE: Dishwasher won't heat

The attempt goes on. I found the diagnostic code/trouble shooting sheet in the pocket of the kickplate. Only it was in French. By the way, I'm located in the United States. To obtain the one in English for my model/serial number, I had Whirpool's Cust Service Center email it to me. Common to most, if not all customer service centers, at first they said that they did not have access to it since it was a repair technican item. A bit of further pushing on my part resulted in the email. Will post the diagnosis results. Really odd thing is that cycles run normal times AND no out of the ordinary blinking lights. Any suggestions?


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RE: Dishwasher won't heat

I'd suggest you post a message on the forums of ApplianceBlog.com. I've used them a number of times in the past and the support has been fantastic. They'll help you diagnose the problem and point you to repair parts if needed.

Standard disclaimer - I have no affiliation or financial interest in the site.

Here is a link that might be useful: Appliance Blog


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