Older Hotpoint Dishwasher not Cleaning

I cannot find any info on the given model number.
Please check it.

Could it be a HDA3220Z04BB?

Could be a fill problem.
After it has filled open the door and check the water level.
On most of these older units it should fill to just under the heating element.

One way to double check this is to add hot water after each fill cycle.
Just be careful to not overfill it.
If it then washes OK you know that it is a fill problem.

Also often when it is a low fill the pump/wash motor will sort of growl as the pump is pulling in air (cavitating)