Hi Im John I will help you with the d/w not cleaning problem.
Can you tell me how much below the heater is the water level after a fill please.
Send me the model number .
For the portable d/w look where the hose storage is located or on the side of the d/w.
Thats where the model number is XXXXXXX.
Attachments are only available to registered users.
This should be the breakdown of your model number and the problem could be the number 7 in the breakdown , It can get clogged up causing the problem.
Remove the spray arm and housing and remove the filter and clean it out .
It should be the problem.
Let me know how you make out.