Door Latches; General Information; Hall Effect Door Sensor; Unintentional Operation - Bosch SHEM63W55N Repair Manual

Design and function

3.5 Door latches

Door latches consist of two parts - a door latch and a Hall Effect sensor. The latch se-
curely holds doors closed and the sensor senses when doors are open or closed.

3.5.1 General information

The door latch on top of the tub has a magnet sensed by a Hall Effect sensor in the
door to determine if the door is open or closed. The Hall Effect sensor is held by two
T10 Torx screws and the door latch is held by two crimped tub tabs.
Fig. 19: Door latch and sensor location
1 Door latch
2 Hall Effect sensor
Fig. 20: Hall effect sensor location
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2 Hall Effect sensor

3.5.2 Hall effect door sensor

The Hall Effect sensor is a proximity sensor. When the door is about to latch, it moves
into the door latch magnetic field, causing positive ("+") and negative ("-") charges to
move to opposite sides of it, creating a small voltage. This voltage increases until it
reaches a preset value when the sensor gets close enough to the door latch magnet,
signifying the door is closed.
Fig. 21: Hall Effect

3.5.3 Unintentional operation

The dishwasher is protected from "unintentional operation" (i.e. accidently resuming a
wash cycle after the door has been opened). After the door has been opened for more
than 4 s, the dishwasher will be paused, requiring customers to deliberately resume the
wash cycle by pressing Start (Resume) before closing the door.
Copyright by BSH Hausgeräte GmbH
If customers complain their dishwashers won't restart once the door has
been opened, advise them to open the door and press Start (Resume)
before closing the door.
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