Main Control Board / Connectors & Pinouts - Whirlpool WETLV27HW0 Service Manual

J9-2
J9-1 RED HOT VALVE (N)
TESTING – WASHER
J5
J5-2 BLK
J5-1 BLK
MAIN CONTROL BOARD (FIGURE 1)
WASHER TROUBLESHOOTING TESTS
TEST #1: Main Control
This test checks for incoming and outgoing supplies
to and from the main control. This test assumes
that proper voltage is present at the outlet.
= represents
1. Unplug washer/dryer or disconnect power.
pin 1
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/dryer or reconnect power.
5. With a voltmeter set to AC, connect black
probe to J5-2 (Neutral) and red probe to J5-1 (L1).
If 120VAC is present, go to step 6.
J5 Power Harness
If 120VAC is not present, check the AC
J5 Power Harness
power cord and power harness for continuity
(See Figure 9).
MAIN CONTROL BOARD CONNECTORS AND PINOUTS (FIGURE 2)
Main Control Board Connectors & Pinouts (Figure 3)
J12
J12-4 GRY –5VDC (CIRCUIT GND)
J12-3 BLU
J12-2 PNK RPM INPUT
J12-1 BLK
J9
J9-8
J9-7
J9-6
J9-5 BLU
J9-4 BK/W COMMON (L1)
J9-3
J9-2
J9-1 RED HOT VALVE (N)
J5
J5-2 BLK
J5-1 BLK
3-6 27" Stacked Laundry Center
n
OPEN
For Service Technician Use Only
NEUTRAL
FOR SERVICE TECHNICIAN'S USE ONLY
L1
J2 Drain/
J2 Drain/
Motor
SHIFTER POSITION INPUT
+12VDC
OPEN
OPEN
OPEN
COLD VALVE (N)
OPEN
OPEN
NEUTRAL
L1
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 J12-4 (Circuit Gnd) and red probe to
J12-1 (+12VDC).
If +12VDC is present, main control
supplies are good.
If +12VDC is not present, go to step 8.
8. Check if shifter assembly is affecting the
main control DC supplies.
a. Unplug washer/dryer or disconnect power.
b. Remove connector J12 from main control.
J6 Lid
c. Plug in washer/dryer or reconnect power.
J6 Lid
Lock
d. Repeat steps 6 and 7. Perform the +12VDC
Motor Lock
check inside header J12 on the board – do not
short pins together.
J2-5 ORN MOTOR CCW WINDING (N)
J2-4 BK/W MOTOR (L1 COMMON)
J2-3 LT BLU DRAIN PUMP MOTOR (N)
J2-2 BK/W L1 COMMON
J2-1 BRN SHIFTER MOTOR (N)
DO NOT REMOVE OR DESTROY
J3
J3-6 BLK ROW 2
J3-5 BLK ROW 3
J3-4 BLK COLUMN 0
J3-3 RED COLUMN 1
J3-2 RED COLUMN 2
J3-1 RED COLUMN 3
J6
J6-3 RED LOCK SWITCH
J6-2 WHT L1
J6-1 BLU LID SWITCH/LOCK SOLENOID
J2
J2-6 RED MOTOR CW WINDING (N)
J2-5 ORN MOTOR CCW WINDING (N)
J2-4 BK/W MOTOR (L1 COMMON)
J2-3 LT BLU DRAIN PUMP MOTOR (N)
J2-2 BK/W L1 COMMON
J2-1 BRN SHIFTER MOTOR (N)
J12 Shifter
J12 Shifter
J3 Rotary
Encoders
J3 Rotary
Encoders
J9 Valves
J9 Valves
Diagnostic LED
Diagnostic LED
J12 Shifter