Question about Moyer Diebel 48 in. SW400 Dishwasher

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Moyer Diebel Model 201LT heating element failures

I've replaced 3 tank heating elements in my machine in 10 months. The elements have a number of tiny pits and then one breaks thru to the interior
and produces an inch long crack when it shorts out. I'm using Eco Lab products. Eco clean Elite Low temp for cleaning agent and Ultra San, Low Temp Sanitizer. The last Tech measured the chemicals and said the proportion was in the low range for soap & sanitizer use.

Posted by Fred227 on


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Without looking at your defective elements it sound like the chemical eat through the element and produce tiny pits tell your Eco Lab Tech to change to another type of chemical they have many kinds to suit your need. Try that . God Bless.

Posted on Jul 04, 2009


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1 Answer

No heat in 501 LT

There's only 2 wires doesn't matter which goes where. Check the hi-limit (small round disk) push the button with power off. You'll feel Click if it needed resetting

Aug 22, 2012 | Moyer Diebel 24 in. 501HT Built-in...

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Hello there
The 500HT machine is very old one. Turn off the power first. To get to the elements you have to get the control box off first so you can get to take off the elements cover , now you can see the elements.
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May 02, 2011 | Moyer Diebel 24 in. 501HT Built-in...

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Hello Huekycanada

You have to check the booster element what amp they are drawing there are three elements if only two are working it will still goes up to 72C may be it need longer time to get there. Secondly I would check the in coming water from your hot water tank it should be 60C at the machine , To check this incoming water temperature the best way is checking the temp. at the sink nearest to the dishwasher. 9 out of 10 I do find this is the main cause of the problem ( the in coming water temp is too low)

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Apr 22, 2011 | Moyer Diebel 24 in. 501HT Built-in...

1 Answer

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Make sure to run it on a empty cycle it run for a few minutes the stop the machine and let it sit and then restart the machine.

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1 Answer

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Check the heater wiring with a voltmeter. Should be around 208v to 240v. If ok then turn off power and remove one heater wire and check heater with ohmeter for continuity. Replace if no continuity.

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Moyer diebel 401 ht not reaching temperature ????

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