DMPA10_H7 Washer Control Module
Used in Servis M3111B washing machines.
This module controls the induction motor rotation speed and direction by changing the stator winding configuration using relay contacts. Power is fed to the windings from a control TRIAC via a single pole change over relay which is used to reverse the motor rotation. Increasing power to reach the selected rotation speed is controlled by the triac switching.
The circuit shown here is a partial tracing taken from the module pcb and while efforts to maintain accuracy have been made, errors may be found in the drawing. The module is live and cannot be considered as safe to work on while power is applied. Only skilled electronic technicians will have the neccessary knowledge to diagnose control module problems. Use the information at your own risk.
