Question edited for a lot more clarity. All question need FULL 'make model (what it is)'.
Question moved from laundry Washing Machines to Hobart Dishwasher category.
'DP' or 'PD'?
PD is not an error code. It shows that when it draining water out shortly after power-up and when shutting down. If it seems to be showing "PD" longer than usual, it means the dishwasher's control circuitry believes there is still water in the tank, due to a faulty water level probe, most like the one under the lift-out screen. It has a plastic body with a metal probe coming out the center.
There is also a dual probe at the rear of the machine, but I believe the dishwasher uses the front probe to determine when to stop draining the machine during "PD" - most likely meaning "Power Drain" or "Power Draining".
If you are not seeing any E- codes (E1, E2, E3, etc.) then these water level probes are likely just fine and the "PD" is appearing normally, as it should during draining conditions.
Manual just for fun.
https://www.partstown.ca/modelManual/HOB-AM15T_spm.pdf
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