PART NO. W10092760A
PAGE 5
PIÈCE N
o
W10092760A
FOR SERVICE TECHNICIAN ONLY – DO NOT REMOVE OR DESTROY
POUR LE TECHNICIEN SEULEMENT – NE PAS ENLEVER NI DÉTRUIRE
9.
With an ohmmeter, check for continuity between all
pins on the P10 machine motor control connector
and the motor rotor position sensor (RPS) connector.
See figures 2 and 4, pages 14 and 15.
➔
If there is continuity, check the motor windings. If
the motor windings are open, replace the drive
motor.
➔
If there is no continuity, replace the lower machine
harness.
10.
With an ohmmeter, check for continuity between all
pins on the P5 machine/motor control connector
and the drive motor connector.
➔
If there is continuity, replace the drive motor.
➔
If there is no continuity, replace the lower
machine harness.
11.
The drive motor and lower harness are good.
Replace the motor RPS board and perform the
Diagnostics test in step 1 to verify repair.
12.
If the Diagnostics motor test in step 1 failed, then
the machine/motor control has failed:
➔
Unplug the washer or disconnect power.
➔
Replace the machine/motor control assembly.
➔
Perform the Motor Diagnostics in step 1 to verify
repair.
TEST #4 Console and Indicators
This test is performed when any of the following
situations occurs during the Console and Indicators
Diagnostic Test, page 2:
✔
None of the indicators light up
✔
No beep sound is heard
✔
Some buttons do not light indicators
None of the indicators light up:
1.
Perform steps in Accessing & Removing the
Electronic Assemblies, page 6 and visually check that
the P11 connector is inserted all the way into the
machine/motor control.
2.
Visually check that the user interface assembly is
properly inserted in the console assembly.
3.
If both visual checks pass, replace the user interface
assembly.
4.
Plug in washer or reconnect power.
5.
Follow procedure under Activation of Console and
Indicators Diagnostic Test mode, page 2 to verify
repair.
6.
If indicators still do not light, the machine/motor
control has failed:
➔
Unplug washer or disconnect power.
➔
Replace the machine/motor control assembly.
➔
Plug in washer or reconnect power.
➔
Activate the Console and Indicators Diagnostic
Test mode, page 2 to verify repair.
No beep sound is heard:
1.
Perform steps in Accessing & Removing the
Electronic Assemblies, page 6 and visually check that
the P11 connector is inserted all the way into the
machine/motor control.
➔
If visual check passes, replace the user interface
assembly.
2.
Plug in washer or reconnect power.
3.
Follow procedure under Activation of Console and
Indicators Diagnostic Test mode, page 2 to verify
repair.
4.
If replacing the user interface assembly failed:
➔
Unplug washer or disconnect power.
➔
Replace the machine/motor control assembly.
➔
Plug in washer or reconnect power.
➔
Activate the Console and Indicators Diagnostic
Test mode, page 2 to verify repair.
Some buttons do not light indicators:
1.
Perform steps in Accessing & Removing the
Electronic Assemblies, page 6 and visually check that
the console electronics and housing assembly is
properly inserted into the front console.
➔
If visual check passes, replace the user interface
assembly.
2.
Plug in washer or reconnect power.
3.
Follow procedure under Activation of Console and
Indicators Diagnostic Test mode, page 2 to verify
repair.
TEST #5 Automatic Temperature Control
This test checks the water inlet valves, the temperature
sensor, and the machine/motor control.
1.
Check the valves by performing Test #2, page 4
before continuing to the next step.
2.
Ensure proper hose connections and that
household’s hot water is present.
3.
Plug in washer or reconnect power.
4.
Remove all clothes from the machine.
5.
Select POWER
➔
wash cycle NORMAL
➔
Wash/Rinse Temp. WARM/COLD
➔
START.
6.
After the tub fills and star ts to wash, stop the
machine.
7.
Measure the water temperature, and verify it is
85°±5°F (29°±3°C).
➔
If the water temperature is correct, ATC is
functional.
➔
If the water temperature is incorrect, then go to
step 8.
8.
Unplug washer or disconnect power.
9.
Access the machine/motor control assembly. See
Accessing & Removing the Electronic Assemblies,
page 6.
10.
Remove the P9 connector, and using an ohmmeter,
measure the resistance between pins P9-1, and
P9-3. Verify that the resistance is within range as
shown in the following table:
THERMISTOR RESISTANCE
Temperature
Resistance ( )
32°F (0°C)
32.6–34.2 k
Ω
40°F (4.4°C)
26–27.5 k
Ω
50°F (10°C)
19–20.5 k
Ω
60°F (16°C)
15–15.7 k
Ω
70°F (21°C)
11.7–12.2 k
Ω
80°F (27°C)
9.1–9.5 k
Ω
90°F (32°C)
7.2–7.6 k
Ω
100°F (38°C)
5.6–5.9 k
Ω
110°F (44°C)
4.6–4.9 k
Ω
120°F (49°C)
3.6–3.8 k
Ω
130°F (55°C)
2.9–3.1 k
Ω
140°F (60°C)
2.4–2.6 k
Ω
➔
If the resistance is within the range shown in the
table, go to step 12.
➔
If the resistance is infinite or close to zero, go to
step 11.
11.
Using an ohmmeter, measure continuity between all
pins on the P9 connector and the thermistor
contacts.
➔
If there is continuity, replace the log valve
assembly.
➔
If there is no continuity, replace the upper
harness.
12.
The log valve and upper harness are good. Replace
the machine/motor control assembly. See
Reinstalling the Electronic Assemblies, page 6.
TEST #6 Water Level and Pressure
Transducer Calibration
This test checks the water level sensing components,
and calibrates the pressure sensor.
1.
Unplug washer or disconnect power.
2.
Access the machine/motor control assembly. See
Accessing & Removing the Electronic Assemblies,
page 6.
3.
Check hose connection between the pressure
transducer on the machine/motor control and the
pressure dome attached to the tub. Check to ensure
hose is routed correctly in the lower cabinet and not
pinched or crimped by the back panel.
4.
Plug in washer or reconnect power.
5.
Drain the tub until all water has been removed
from tub.
6.
Remove all clothes from the machine.
7.
Calibrate the pressure transducer:
➔
See Activation of Manual Diagnostic Test Mode,
page 2, and perform steps 1 and 2 until the
display shows
00
and the Add A Garment
indicator LED is flashing.
➔
Press and hold the End of Cycle Signal button until
a single beep sounds, and the display shows
to indicate zero calibration has completed.
➔
Exit Diagnostic: Manual by pressing either
PAUSE/CANCEL or POWER.
8.
Select POWER
➔
wash cycle NORMAL
➔
START.
9.
Verify that the tub fills to the top of the impeller plate
(impeller models) or to a level above the agitator
vanes (agitator models), but much lower than the
SUPER Load Size water level.
TEST #7 Drain/Recirculation
Perform the following checks if washer fails to drain or
recirculate.
1.
See Activation of Manual Diagnostic Test Mode,
page 2 and perform the Manual: Pumps test.
2.
Remove the console to access the machine/motor
control assembly. See Accessing & Removing the
Electronic Assemblies, page 6.
3.
Visually check that the P4 connector is inserted all
the way into the machine/motor control.
➔
If visual check passes, go to step 4.
➔
If visual check fails, reconnect P4 and repeat step 1.
4.
Remove connector P4 from the machine/motor
control and check resistance values of pump motor
windings. Resistance values should match those
shown in wiring diagram, page 16.
➔
If resistance values are good, go to step 7.
➔
If winding measurements are much higher (tens of
ohms to infinity) than shown in wiring diagram, a
problem exists in the pump motor winding or in
the connection between the machine/motor
control and the pump. Go to step 5.
