Whirlpool Cabrio WTW5700XW, Техническое образование

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6-9
TROUBLESHOOTING GUIDE (continued)
FOR SERVICE TECHNICIANS ONLY
Figure 5 - PSC Motor Strip Circuit (shown in ON position)
Main Control
CW TRIAC
Main Control Main Control
CCW TRIAC
J15-3
J15-4
J16-5
Pin 9
Pin 1
Pin 6
Pin 3
J16-7
J16-6
J7-3
J7-1
PSC Motor
Run
Cap
CW Winding
CCW Winding
Lock Switch
N
L1
Each Winding 3.5 to 6 ohms
1
3
2. Unplug washer or disconnect power.
3. Check to see if basket will turn freely.
If basket turns freely, go to step 4.
If basket does not turn freely, determine what
is causing the mechanical friction or lockup.
4. Remove console to access main control.
5. Visually check that the J2 and J16 connectors
are inserted all the way into the main control.
If visual checks pass, go to step 6.
If connectors are not inserted properly,
reconnect J2 and J16 and repeat step 1.
6. Plug in washer or reconnect power. Run the
Gentle Agitation test under Manual Test Mode.
7. With a voltmeter set to AC; connect black
probe to J16-5 (N) and red probe to J16-6
(CW Winding).
If 120VAC is cycling ON during CW rotation,
go to step 8.
If 120VAC is not present, go to Test #1:
Main Control, page 12.
8. With a voltmeter set to AC, connect black probe
to J16-5 (N), red probe to J16-7 (CCW Winding).
If 120VAC is cycling ON during CCW
rotation, go to step 9.
If 120VAC is not present, go to Test #1:
Main Control, page 12.
9. Unplug washer or disconnect power.
10. Remove connector J16 from main
control. With an ohmmeter, verify resistance
values shown below across the following J16
connector pinouts:
Resistance should be between 3.5 and 6 Ω .
If values are open or out of range, go to step 11.
If values are correct, go to step 15.
11. Tilt washer back to access the bottom
of the washer and the drive motor area.
12. Visually check the mounting bracket and
electrical connections to the motor and shifter.
If visual check passes, go to step 13.
If connections are loose, reconnect the
electrical connections, reassemble motor
cover, and repeat step 1.
13. With an ohmmeter, check the harness
for continuity between the main control, motor,
and run capacitor using the following test
points. See chart.
If there is continuity, go to step 14.
If there is no continuity, replace the lower
machine harness and repeat step 1.
14. With an ohmmeter, check the motor
windings at the following motor connections.
Resistance should be between 3.5 and 6 Ω .
If values are open or out of range, replace
motor.
If values are correct, go to step 15.
Motor Winding J16 Connector Pinout
CW Winding J16, 5 & 6
CCW Winding J16, 5 & 7
Motor Harness Check
Motor Connector Pin-1 to Chassis Ground
Motor Connector Pin-3 to Main Control J16-7
Motor Connector Pin-3 to Run Capacitor Pin-3
Motor Connector Pin-6 to Main Control J16-6
Motor Connector Pin-6 to Run Capacitor Pin-1
Motor Connector Pin-9 to Main Control J16-5
Motor Winding Motor Pinout
CW Winding Pins 4 & 6
CCW Winding Pins 3 & 6
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16. Replace the shifter assembly.
a. Unplug washer or disconnect power.
b. Replace shifter assembly.
c. Reassemble all parts and panels.
d. Plug in washer or reconnect power. Calibrate
washer and perform Automatic Test to
verify repair.
17. Replace main control.
a. Unplug washer or disconnect power.
b. Replace the main control.
c. Reassemble all parts and panels.
d. Plug in washer or reconnect power. Calibrate
washer and perform Automatic Test to
verify repair.
TEST #3b: Drive System – Motor
This test checks the motor, motor windings,
wiring, and start capacitor.
NOTE: Refer to Figure 5, “PSC Motor
Strip Circuit” on page 15 for tests and
measurements.
IMPORTANT: Drain water from tub before
Figure 5 - PSC Motor Strip Curcuit (shown in ON position)
accessing bottom of washer.
1. Check the motor and electrical connections
by performing the Gentle or Heavy
Agitation test under Manual Test Mode.
The following steps assume that this step
was unsuccessful.
2. Unplug washer or disconnect power.
3. Check to see if basket will turn freely.
 If basket turns freely, go to step 4.
 If basket does not turn freely, determine
what is causing the mechanical friction or
lockup.
4. Remove console to access main control.
5. Visually check that the J2 and J16
connectors are inserted all the way into the
main control.
 If visual checks pass, go to step 6.
 If connectors are not inserted properly,
reconnect J2 and J16 and repeat step 1.
6. Plug in washer or reconnect power. Run the
Gentle Agitation test under Manual Test
Mode.
7. With a voltmeter set to AC; connect black
probe to J16-5 (N) and red probe to J16-6
(CW Winding).
 If 120VAC is cycling ON during CW rotation,
go to step 8.
 If 120VAC is not present, go to Test #1: Main
Control, page 12.
8. With a voltmeter set to AC, connect black
probe to J16-5 (N), red probe to J16-7
(CCW Winding).
 If 120VAC is cycling ON during CCW
rotation, go to step 9.
 If 120VAC is not present, go to Test #1: Main
Control.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before
operating.
Failure to do so can result in death or
electrical shock.
WARNING