Service Manual

3-18
n
Whirlpool Smart All-In-One Washer & Dryer
COMPONENT TESTING
For Service Technician Use Only
TEST #11: Supply Connecons—CAN
This test assumes that proper voltage is present at the outlet,
and a visual inspecon indicates that the power cord is
securely fastened to the terminal block.
Canadian Installations:
1. Unplug washer/dryer or disconnect power.
2. Gently lay washer/dryer on its right side to access the
ACU. Remove AC shield and ACU cover. Access the
machine electronics without disconnecng any wiring to
the ACU.
3. With an ohmmeter, check the connuity from L1 and L2
plug terminals of the power cord to the terminals for L1
and L2 on the ACU. See gure 1.
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
5. Access the machine electronics without
disconnecting any wiring to the ACU.
6. Check for continuity between the L2
terminal of the plug and J1 on the ACU.
¾If there is continuity, go to step 7.
¾If there is no continuity, and the mechanical
connections of the wire are secure, check
for continuity at the IF – RFI. If there is no
continuity, replace the harness between the
ACU and the IF – RFI and the IF – RFI itself.
7. Visually check that ALL connectors are
fully inserted into the ACU.
8. Visually check that ALL connectors are
fully inserted into the HMI.
9. Reassemble all parts and panels.
10. Plug in washer/dryer or reconnect power.
11. Perform the Service Diagnostic Mode
Tests on page 5 to verify repair.
Canadian Installations:
1. Unplug washer/dryer or disconnect power.
2. Access the machine electronics without
disconnecting any wiring to the ACU.
3. With an ohmmeter, check the continuity
from L1 and L2 plug terminals of the power
cord to the terminals for L1 and L2 on the
ACU. See figure 10b.
Figure 10a - Plug-to-terminal connections
for electric dryer.
Power Cord
Plug
Terminal Block
&20
1
/
¾If continuity exists for both connections,
go to step 5.
¾If an open circuit is found, check the integrity
of the connections of the power cord to the
harness in the washer/dryer; harness to the
ACU; and the integrity of the power cord itself.
4. If it is necessary to replace the power
cord, remove the retaining clip that secures
the cord to the back panel. Disconnect the
cord from the main harness and the ground
wire from the rear panel, then pull out the
power cord.
5. Visually check that ALL connectors are
fully inserted into the ACU.
6. Visually check that ALL connectors are
fully inserted into the HMI.
7. Reassemble all parts and panels.
8. Plug in washer/dryer or reconnect power.
9. Perform the Service Diagnostic Mode
Tests on page 5 to verify repair.
Power Cord
Plug
ACU
Figure 10b - Plug-to-terminal connections
for electric dryer.
L1
COM
L2
L1
L2
Figure 1 - Plug-to-terminal connections for electric dryer.
¾ If connuity exists for both connecons, go to step 5.
¾ If an open circuit is found, check the integrity of the
connecons of the power cord to the harness in the
washer/dryer; harness to the ACU; and the integrity of
the power cord itself.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Failure to do so can result in death or
electrical shock.
Replace all parts and panels before operating.
4. If it is necessary to replace the power cord, remove the
retaining clip that secures the cord to the back panel.
Disconnect the cord from the main harness and the
ground wire from the rear panel, then pull out the power
cord.
5. Visually check that ALL connectors are fully inserted into
the ACU.
6. Visually check that ALL connectors are fully inserted into
the HMI.
7. Reassemble all parts and panels.
8. Plug in washer/dryer or reconnect power.
9. Perform the Service Diagnosc Mode Tests on page 2-3 to
verify repair.