29
Component Testing
Compressor Description
Test Procedure
Switch, keyboard Semiconductor
Switch
for control panel
keyboard
Electronic
control is not
repairable. If any
component is faulty,
entire control must be
replaced.
NOTE:
Repair or replaced line
voltage components before
testing or replacing electronic
control. Do not assume problems
are caused by electronic control
system. Opened, shorted,
grounded or otherwise faulty line
voltage components (including
power cord and wiring) can
create problems that appear to be
caused by electronic control.
Switch, NO
Interrupts connection to ice
Check resistance across terminals.
maker when freezer door is
Switch arm depressed
closed
open .
Switch arm not depressed
open
Switch, NC
Completes circuit to allow
Check resistance across terminals.
indicated function. See tech
Switch arm down
sheet and wiring diagram for
“NC” terminals
closed
individual switch.
“NO” terminals
open
Switch arm up
“NC”
terminals
open
“NO”
terminals closed
Switch, power
Disconnect all power to unit
Check resistance across terminals
DPST
when switch is OFF (open)
Switch OFF (open) No continuity between 1&2, 4&5
Switch ON (closed) continuity between 1&2, 4&5
Unit shipped with switch ON.