Washer stops, sometimes after wash cycle and sometimes during rinse cycle. By restarting and skipping completed cycles, wash will complete.
Strange thing is that the error code is E52 (no signal from motor tacho) but tacho tests ok. I.e pulses a meter if motor turned.

Geoff, July 2012

E52 is a motor issue.Could be worn/stuck brushes or the insulation on the motor going down to earth.Could also be wiring or Main pcb!!

CK, July 2012