PAGE 15
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES
TROY
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
on page 9.
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, check resistance of motor
windings 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 drive system.
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.
If there is continuity, go to step 14.
If there is no continuity, replace the lower
washer harness and repeat step 1.
14
. With an ohmmeter, check resistance
of 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, 6 & 5
CCW Winding
J16, 7 & 5
Motor Winding
Motor Pinout
CW Winding
Pins 6 & 9
CCW Winding
Pins 3 & 9
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
Inductive
Wire Loop
