Thread Number: 83407
/ Tag: Vintage Dishwashers
Kitchenaid KDM21 overheat |
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Post# 1077309 , Reply# 1   6/16/2020 at 00:20 (1,402 days old) by eronie (Flushing Michigan)   |   | |
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Sounds to me like a timer problem. The element in the bottom of the tub should not be on during the dry cycle, that's a separate fan, heater. |
Post# 1077355 , Reply# 3   6/16/2020 at 11:42 (1,402 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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Post# 1077361 , Reply# 4   6/16/2020 at 12:39 (1,402 days old) by antiquetvguy (Milwaukee)   |   | |
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Thanks! I will report back when the new parts arrive and I install them. |
Post# 1078036 , Reply# 6   6/20/2020 at 18:57 (1,398 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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There is a 140 and a 165 thermostat plus a safety that should shut down the heater if it runs dry for very long in that package.
I would run it again on Sani rinse and see what happens, it is very common for fill valves to fail near the end of the cycle as they get hot and to work again after they cool, so run the full cycle and observe.
It is also possible that the heater evaporated all the water in the sump if it got stuck on the 165 thermostat long enough.
You can reuse the washer and seal from the original thermostats to install the new parts.
John L. |