Whirlpool WFW3090GW, Руководство по обслуживанию

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COMPONENT TESTING
Whirlpool Compact Front Load Washer
n
3-5
For Service Technician Use Only
APPLIANCE CONTROL UNIT (ACU) & PINOUTS - FIGURE 2
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
TEST PROCEDURES
IMPORTANT: The following procedures
may require the use of needle probes
to measure voltage. Failure to use needle
probes will damage the connectors. To
ease the process of measuring voltage
and resistance, test points for each pin are
accessible through the slots in the plastic
beneath each ACU connector.
TEST #1: ACU Power Check
This test checks for incoming and outgoing power
to and from Appliance Control Unit (ACU). This test
assumes that proper voltage is present at the outlet.
1. Unplug washer or disconnect power.
2. Gently lay washer on its right side
to access the ACU.
3. Visually check that all connections to the
interference filter (IF) are securely connected.
See Figure 2, below.
4. Visually check that all connections to the
ACU are fully inserted. See Figure 3, below.
5. If both visual checks pass, go to step 6.
6. Plug in washer or reconnect power.
7. With a voltmeter set to AC, check for line
voltage at the input of the interference filter.
See Figure 2.
¾
If line voltage is present, go to step 8.
¾
If line voltage is not present, verify the
continuity of the power cord. If it fails the
continuity check, replace the power cord.
8. With a voltmeter set to AC, check for line
voltage at the output of the interference filter.
See Figure 2.
¾
If line voltage is present, go to step 9.
¾
If line voltage is not present, replace the
interference filter.
9. With a voltmeter set to AC, check for input
line voltage to the ACU across pins 1 and 2
of connector J42 AC Input (IF). See Figure 3.
¾
If line voltage is present, go to step 10.
¾
If line voltage is not present, check
harnesses and connections between the
filter and the ACU. Visually inspect inside
connector housing for bent or damaged
terminals. Repair as necessary.
Figure 3 - Appliance Control Unit (ACU)
Figure 2 - Interference Filter (IF)
Filter Output - Line (BU)
Filter Input - Power Cord Line (BK) Filter Input - Power Cord Neutral (WT)
Filter Output - Neutral (BU)
J15-Inlet Valve
(1,2,3)
Drain Pump
(5,6)
1
2
3
5
6
WV-DP
1
2
3
MOT
J36-Motor
1
2
HE
J41-Heater
1
2
IF
J42-AC Input
1
2
3
DSS
J43-Door Lock/
Switch
J21-User
Interface
(CUIO)
(12,11,10,9)
APS
(7,6,5)
12
11
10
9
7
6
5
SB-PRS-UI
3
4
AQS-NTC
J23-NTC
(3,4)
ACCESSING THE APPLIANCE CONTROL UNIT (ACU)
Appliance Control Unit (ACU) – Gently lay the washer on its
right side (place a 2 x 4 or similar sized object on the floor
prior to laying the washer on its side to elevate the washer
slightly, making it easier to upright it later). Remove the ACU
screw on the rear of the washer cabinet with a 7mm hex
nut driver. Push the plastic lever attached to the ACU (see
Figure 3), slide the ACU to the right (toward the suspension
dampers), freeing the ACU tabs from the ACU slots in the
washer cabinet (see Figure 4). Lift the ACU out of the washer
cabinet. When placing the washer upright, make sure
suspension springs remain in place.
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES TROY
COMPONENT REMOVAL
NOTE: Instructions are provided only for
those components where removal is not
obvious.
Components accessible through top panel:
• Dispensing System
• Door Switch/Lock Assembly
• Interference Filter
• Water Level Sensor
• User Interface/Console – 1) Remove
cycle selector knob and then separate
UI from its housing.
• Water Valve Assembly
Components accessible through back panel:
• Drive Motor
• Heater/Temp Sensor Assembly
Figure 10 - Pushing Lever on ACU
Lever (push in
direction of arrow)
Figure 11 - Releasing ACU Tabs from Cabinet
Tabs
(slide ACU to right to release)
Components accessible through bottom
of washer:
• Drain Pump
• Appliance Control Unit (ACU) – Gently lay
the washer on its right side (place a 2 x 4
or similar sized object on the floor prior to
laying the washer on its side to elevate the
washer slightly, making it easier to upright
it later). Remove the ACU screw on the
rear of the washer cabinet with a 7mm hex
nut driver. Push the plastic lever attached
to the ACU (see Figure 10), slide the
ACU to the right (toward the suspension
dampers), freeing the ACU tabs from the
ACU slots in the washer cabinet (see
Figure 11). Lift the ACU out of the washer
cabinet. When placing the washer upright,
make sure suspension springs remain
in place.
MANUALLY UNLOCKING
THE DOOR LOCK SYSTEM
1. Unplug washer or disconnect power.
2. Remove the base panel at the bottom
front of the washer.
3. Pull the ring-shaped tab protruding
at the lower right corner of the washer
(see Figure 9).
4. The door may be opened.
Figure 9 - Detail, Door Lock Assembly
Ring-Shaped Tab
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES TROY
COMPONENT REMOVAL
NOTE: Instructions are provided only for
those components where removal is not
obvious.
Components accessible through top panel:
• Dispensing System
• Door Switch/Lock Assembly
• Interference Filter
• Water Level Sensor
• User Interface/Console – 1) Remove
cycle selector knob and then separate
UI from its housing.
• Water Valve Assembly
Components accessible through back panel:
• Drive Motor
• Heater/Temp Sensor Assembly
Figure 10 - Pushing Lever on ACU
Lever (push in
direction of arrow)
Figure 11 - Releasing ACU Tabs from Cabinet
Tabs
(slide ACU to right to release)
Components accessible through bottom
of washer:
• Drain Pump
• Appliance Control Unit (ACU) – Gently lay
the washer on its right side (place a 2 x 4
or similar sized object on the floor prior to
laying the washer on its side to elevate the
washer slightly, making it easier to upright
it later). Remove the ACU screw on the
rear of the washer cabinet with a 7mm hex
nut driver. Push the plastic lever attached
to the ACU (see Figure 10), slide the
ACU to the right (toward the suspension
dampers), freeing the ACU tabs from the
ACU slots in the washer cabinet (see
Figure 11). Lift the ACU out of the washer
cabinet. When placing the washer upright,
make sure suspension springs remain
in place.
MANUALLY UNLOCKING
THE DOOR LOCK SYSTEM
1. Unplug washer or disconnect power.
2. Remove the base panel at the bottom
front of the washer.
3. Pull the ring-shaped tab protruding
at the lower right corner of the washer
(see Figure 9).
4. The door may be opened.
Figure 9 - Detail, Door Lock Assembly
Ring-Shaped Tab
Figure 3 - Pushing Lever on ACU Figure 4 - Releasing ACU Tabs from Cabinet
Tabs
(slide ACU to right to release)
Lever (push in direction of arrow)