PAGE 12
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
TROUBLESHOOTING TESTS
TEST #1: Main Control
This test checks for incoming and outgoing power
to and from main control. This test assumes that
proper voltage is present at the outlet.
1.
Unplug washer or disconnect power.
2.
Remove console to access main control.
3.
Verify that ALL connectors are inserted
all the way into the main control.
4.
Plug in washer or reconnect power.
5.
With a voltmeter set to
AC
, connect black
probe to J7-3 (Neutral) and red probe to J7-1 (L1).
If 120VAC is present, go to step 6.
If 120VAC is not present, check the AC power
cord for continuity (See Figure 9, page 20.)
Main Control Board Connectors and Pinouts (Figure 3)
J2-5
OPEN
J2-4 BLK +13VDC
J2-3 GRY CIRCUIT GND
J2-2 PNK RPM INPUT
J2-1 BLU SHIFTER POSITION INPUT
J3-10 BLK TEMP THERMISTOR INPUT
J3-9 BLK TEMP THERMISTOR GND
J3-8
OPEN
J3-7 ORN FAB-SOFT VALVE (L1)
J3-6 BRN OXI VALVE (L1)
J3-5 BLU COLD VALVE (L1)
J3-4 RED HOT VALVE (L1)
J3-3
OPEN
J3-2
OPEN
J3-1 WHT NEUTRAL
J7-3 BLK NEUTRAL
J7-2 GRN CHASSIS GROUND
J7-1 BLK L1
J2
J3
J7
J9
J16
J15
SHIF
TER
V
AL
VES TEMP
POWER
CORD
CONSOLE UI
LID L
OCK
DR
AIN MOTOR
J9-8 WHT +13VDC
J9-7 WHT BUZZER
J9-6 WHT CLOCK
J9-5 WHT DATA OUT
J9-4 WHT STROBE
J9-3 WHT CIRCUIT GND
J9-2 WHT DATA IN
J9-1 BLK +5VDC
J15-4 RED LOCK SWITCH
J15-3 WHT NEUTRAL
J15-2 BLU LID SWITCH INPUT
J15-1 YEL LOCK SWITCH SOLENOID (L1)
J16-7 ORN MOTOR CCW WINDING (L1)
J16-6 RED MOTOR CW WINDING (L1)
J16-5 WHT MOTOR (NEUTRAL)
J16-4
OPEN
J16-3 LT BLU DRAIN PUMP MOTOR (L1)
J16-2 WHT BLU SHIFTER MOTOR (NEUTRAL)
J16-1 BRN SHIFTER MOTOR (L1)
J9-Console UI
Diagnostic
LED
J2-Shifter
J7-Power Cord
J16-PSC Motor/Drain
J15-Lid Lock
J3-Temperature
Sensor/Valves
=
represents pin-1
6.
Is the “Diagnostic LED” ON or OFF? (See
Figure 3 below for LED location.)
ON: (+5VDC present) continue to step 7.
OFF: (+5VDC missing) proceed to step 8.
7.
With a voltmeter set to
DC
, connect black
probe to J9-3 (Circuit Gnd) and red probe to
J9-8 (+13VDC).
If +13VDC (and +5VDC) are present, and
UI is unresponsive, go to Test #4: Console
and Indicators, page 16.
If +13VDC is not present, go to step 8.
8.
Check if shifter assembly is affecting the
main control DC supplies.
a.
Unplug washer or disconnect power.
b.
Remove connector
J2
from main control.
c.
Plug in washer or reconnect power.
