PAGE 21
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES
TROY
Temperature Sensor
Figure 9 - Heater/Temperature Sensor Assembly
Heater Terminal
Heater Terminal
GND
(not used)
TEST #11: Temperature Sensor
This test checks the temperature sensor,
wiring, and CCU.
1.
Unplug washer or disconnect power.
2.
Remove top panel to access machine
electronics.
3.
Disconnect connector
SET2
from the CCU.
Refer to CCU diagram on page 13.
4.
Using an ohmmeter, measure the
resistance across pins 1 and 2 of temperature
sensor connector
SET2
. The measured
resistance should be within the temperature
range shown in the following table.
ÿ
If the resistance is within the range shown
in the table, go to step 8.
ÿ
If the resistance is infinite or close to zero,
go to step 5.
5.
Remove the back panel to access the
heating element.
6.
Disconnect the temperature sensor
connector from the heating element. See
Figure 9.
7.
Using an ohmmeter, measure the
resistance across pins 1 and 2 of the
temperature sensor (on the heating element).
ÿ
If the resistance is within the range shown
in the table, the sensor is good; replace the
lower main harness.
ÿ
If the resistance is open, replace the
temperature sensor.
8.
If the preceding steps did not correct the
temperature sensor problem, replace the CCU.
ÿ
Unplug washer or disconnect power.
ÿ
Replace the CCU.
ÿ
Reassemble all parts and panels.
ÿ
Perform the “Quick Diagnostic Test”
on page 6 to verify repair.
TEST #12: Dispenser
Distribution System
Perform the following checks if the washer will
not dispense detergent, bleach, or fabric softener.
1.
Check water supply to washer. Check water
hose connections to and inside the washer.
2.
Verify dispenser drawer is not clogged
with detergent.
3.
Unplug washer or disconnect power.
4.
Remove the top panel to access the
machine electronics.
5.
Check the mechanical linkage from
dispenser motor to top of dispenser.
6.
Visually check that the
DI6
connector is
inserted all the way into the CCU. Refer to
CCU diagram on page 13.
ÿ
If visual check passes, go to step 7.
ÿ
If connector is not inserted properly,
reconnect
DI6
and retest.
7.
Remove connector
DI6
from the CCU.
With an ohmmeter, verify the resistance
values shown below across the following
DI6
connector pinouts.
ÿ
If the motor resistance is good, go to step 8.
ÿ
If the measurement does not match
the value shown in the chart, check the
harness and connections between the CCU
and dispenser motor for continuity. If the
harness and connections are good, replace
the dispenser motor.
Component
Dispenser
Motor
DI6-1
DI6-3
Contacts
Measured
DISPENSER SYSTEM RESISTANCE
1400-1600
Resistance
Assembly Removal Nut
Approx. Resistance
F°
C°
K
32
0
35.9
50
10
22.8
68
20
14.8
86
30
9.8
104
40
6.6
122
50
4.6
140
60
3.2
158
70
2.3
176
80
1.7
194
90
1.3
Approx. Temperature