Sharp MX-M550U Service Manual page 408

9) Remove the main power switch.
10) Remove the counter mounting plate.
11) Disconnect the connector and remove the front door open/
close switch unit.
(4) Left door open/close detector
1) Open the left door.
MX-M700N SENSOR, SWITCH SECTION S – 2
2) Remove the left front cabinet.
3) Disconnect the connector, and remove the left door open/close
detector unit. Remove the left door open/close detector.
(5) Dry heater switch
1) Remove the rear cabinet.
2) Disconnect the connector, and remove the dry heater switch.