Checking The Door Lock Position Switches - Viking RDSCE2305B Service Manual

To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all ground wires are connected before certifying unit as repaired and/or operational.

Checking the door lock position switches

With the door in the unlocked position, the S1
switch (N.O.) is activated by the motor cam.
Shown below are the switch positions and
wire colors. To test, check continuity between
the blue/white and brown wires. The reading
should be 0 ohms. The S2 switch is N.O. and
will read infinite ohms (∞) when the door is
unlocked.
Shown below is the closed circuit in red.
©2012 Viking Preferred Service
! WARNING
When the door locks, the S1 switch (N.O.)
is no longer in contact with the motor cam
and will read infinite ohms (∞). The S2 switch
is N.O. and should close when the door is
locked. To test, check continuity between the
orange and brown wires. The reading should
be 0 ohms when the door is locked.
Shown below is the closed circuit in red.
Troubleshooting
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