No drain

Hello
I know you have checked the pump. Did you inspect it throughly to make sure the pump and hoses were not restricted with debris ? What error core are you getting ? Did you run the unit through diagnostics to see if there are any stored error codes ? If not see the link below below for running this unit throgh diagnostics. When getting a ND DRAIN ERROR here are the most common causes .

1) Check for Foreign material entering the pump or hoses.
2) Check to make sure the wiring harness is connected properly.
3) Check the water pump terminal .
4) Check for frozen water in pump, highly unlikly this time of the year.

Matt Ace technician