Dignostic Tests - Whirlpool KSBS20QEWH0 User Manual

See the Tech Sheet for test procedures on electrical and mechanical components not listed here.
COMPONENT
Adaptive Defrost Control
Defrost Bi-Metal
Photosensative
Switch
DIAGNOSTIC TESTS
TEST
Input Voltage Readings
and Checks
L1 to L2 - Line voltage should
be present whenever the unit
is powered.
K to L2 - Line voltage chould
be present with cold control
closed.
T to L2 - Line voltage should
be present when cold control
is closed, defrost thermostat
is closed and ADC is in defrost
mode.
R to L2 - Line voltage should
be present with refrigerator
door open. (Door light switch
closed)
F to L2 - Line voltage should
be present with freezer door
open. (Door light switch
closed)
Output Voltage Readings
and Checks
C to L2 - Line voltage should
be present when unit is
cooling. (Cold control closed)
D to L2 - Line voltage should
be present when unit is
defrosting. (Cold control
closed)
Check resistance across
terminals.
1. To check light sensor with
cavity light switch "on", cover
light sensor eye and the lamp
should light up
approximately 50% of full
illumination.
2. Activate the water or ice
dispenser switch. Lamp
should light at full illumination.
23
SOLUTION
1. With power off and the evaporator coil below
freezing, the bi-metal should show 0 ohms when
check with an ohmmeter.
Cut out temperature approximately 48°F
Cut in temperature approximately 13°F
1. If light fails to light up, go to step 2.
at
2.a) If lamp lights up replace light sensor
b) If lamp does not light up check cavity lamp
and socket. Either the lamp is burned out or the
socket is malfunctioning.