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I’m sorry to hear you're having trouble with your appliance; hopefully, we can get this resolved quickly.
Yes as everything works fine however, it won't heat water you will have to replace the heating element.
To replace it you will have to unplug the dishwasher and pull it out.
Then access the element from underneath the appliance and replace.
This VIDEO will give you an idea on how its done.
If you have any further questions, don't hesitate to ask!
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