Heating element

It Doesn’t Appear That The Heating Element Is Working. Is It Tough To Replace Or Should I Call A Repair Man?

Here are your parts
Replacement parts for WHIRLPOOL KUDI01TJWH1 Undercounter Dishwasher | AppliancePartsPros.com

Here is the wiring diagram
http://www.servicematters.com/docs/wiring/Tech%20Sheet%20-%208530866.pdf
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Is It Tough To Replace[/COLOR]
Depends what you consider tough.
Unit will have to be pulled out from under the counter at least it will be easier that way.
Also just because it is not heating does not mean that the heater is blown.
The hi-limit thermostat may be blown.
Or it may not be getting power from the control board.
So more troubleshooting must be done before you can say the heater needs replacing. A multimeter is very helpful for this.

Or Should I Call A Repair Man?
Depends on a lot of things so that is a decision only you can make.

Thanks denman