Samsung DMR78AHS/XAC Service Manual page 22

3. Disassembly and Reassembly
Part
Circulation Motor
3-8
Photo Description
10. Place the dishwasher on its back so that you can
see the base. Remove the two (2) screws that hold
the base and the shutter in place.
11. Remove the leakage sensor connector (white) inside
the shutter.
12. Remove the circulation motor connector (white).
13. Remove the five (5) screws holding the circulation
motor and the sump in place.
14. Hold and pull the circulation motor to remove it from
the sump.