COMPONENT TESTING
Whirlpool & Maytag 9.2 Cu. Ft. Steam Dryer
n
3-9
For Service Technician Use Only
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
4.
With an ohmmeter, check the continuity
from L1 and N plug terminals of the power
cord to the terminals for L1 and N on the
ACU. See figure 4b.
¾
If continuity exists for both connections,
go to step 6.
¾
If an open circuit is found, check the integrity
of the connections of the power cord to the
harness in the dryer; harness to the ACU;
and the integrity of the power cord itself.
5.
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.
6.
Visually check that ALL connectors are
fully inserted into the ACU.
7.
Visually check that ALL connectors are
fully inserted into the UI.
8.
Reassemble all parts and panels.
9.
Plug in dryer or reconnect power.
10.
Perform steps under “Service Test Mode”,
page 3, to verify repair.
GAS DRYER (U.S. and Canadian Installations):
1.
Unplug dryer or disconnect power.
2.
Remove the cover plate from the top right
corner of the back of the dryer. See figure 3.
3.
Check that the power cord is firmly
connected to the dryer’s wire harness.
See figure 5.
4.
Access the machine electronics without
disconnecting any wiring to the ACU.
5.
With an ohmmeter, check for continuity
between the neutral (N) terminal of the plug and
J8-3 (white wire) on the ACU. The left-hand
side of figure 6 shows the position of the neutral
terminal (N) on the power cord plug. Also see
figure 2, page 12.
¾
If there is continuity, go to step 6.
¾
If there is no continuity, disconnect the
white wire of the main harness from the
power cord at the location illustrated in
figure 5. Test the continuity of the power
cord neutral wire as illustrated in figure 6.
If an open circuit is found, replace the
power cord. Otherwise, go to step 6.
6.
In a similar way, check for continuity
between the L1 terminal of the plug and J9-2
(black wire) on the ACU.
¾
If there is continuity, go to step 7.
¾
If there is no continuity, check the continuity
of the power cord in a similar way to that
illustrated in figure 6, but for power cord’s
L1 wire.
¾
If an open circuit is found, replace the power
cord. Otherwise, replace the main harness.
7.
Visually check that ALL connectors are fully
inserted into the ACU.
8.
Visually check that ALL connectors are fully
inserted into the UI.
COM
Neu
G
L1
L1
Masse
N
Neu
N
G
Masse
Figure 5 - Power cord-to-wire harness
connection for gas dryer.
Figure 6 - Power cord terminals, gas dryer.
Power Cord
Plug
J9
1
5
1
P/N XXXXXX R
ev X
Date Code YDDD
-xx
XXXX
-XXX
MADE IN CO
O
L1
COM
J8
L1
N
Neu
N
Neu
Power Cord
Plug
ACU
Figure 4b - Plug-to-terminal connections
for electric dryer.
Power
Cord
Wire
Harness
Figure 3 - Plug-to-terminal connections for electric dryer
5. 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.
6. Visually check that ALL connectors are fully inserted into
the ACU.
7. Visually check that ALL connectors are fully inserted into
the UI.
8. Reassemble all parts and panels.
9. Plug in dryer or reconnect power.
10. Perform steps under “Service Test Mode”, page 2-5, to
verify repair.
GAS DRYER (U.S. and Canadian Installations):
1. Unplug dryer or disconnect power.
2. Remove the cover plate from the top right corner of the
back of the dryer. See figure 1.
3. Check that the power cord is firmly connected to the
dryer’s wire harness. See figure 4.
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
4.
With an ohmmeter, check the continuity
from L1 and N plug terminals of the power
cord to the terminals for L1 and N on the
ACU. See figure 4b.
¾
If continuity exists for both connections,
go to step 6.
¾
If an open circuit is found, check the integrity
of the connections of the power cord to the
harness in the dryer; harness to the ACU;
and the integrity of the power cord itself.
5.
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.
6.
Visually check that ALL connectors are
fully inserted into the ACU.
7.
Visually check that ALL connectors are
fully inserted into the UI.
8.
Reassemble all parts and panels.
9.
Plug in dryer or reconnect power.
10.
Perform steps under “Service Test Mode”,
page 3, to verify repair.
GAS DRYER (U.S. and Canadian Installations):
1.
Unplug dryer or disconnect power.
2.
Remove the cover plate from the top right
corner of the back of the dryer. See figure 3.
3.
Check that the power cord is firmly
connected to the dryer’s wire harness.
See figure 5.
4.
Access the machine electronics without
disconnecting any wiring to the ACU.
5.
With an ohmmeter, check for continuity
between the neutral (N) terminal of the plug and
J8-3 (white wire) on the ACU. The left-hand
side of figure 6 shows the position of the neutral
terminal (N) on the power cord plug. Also see
figure 2, page 12.
¾
If there is continuity, go to step 6.
¾
If there is no continuity, disconnect the
white wire of the main harness from the
power cord at the location illustrated in
figure 5. Test the continuity of the power
cord neutral wire as illustrated in figure 6.
If an open circuit is found, replace the
power cord. Otherwise, go to step 6.
6.
In a similar way, check for continuity
between the L1 terminal of the plug and J9-2
(black wire) on the ACU.
¾
If there is continuity, go to step 7.
¾
If there is no continuity, check the continuity
of the power cord in a similar way to that
illustrated in figure 6, but for power cord’s
L1 wire.
¾
If an open circuit is found, replace the power
cord. Otherwise, replace the main harness.
7.
Visually check that ALL connectors are fully
inserted into the ACU.
8.
Visually check that ALL connectors are fully
inserted into the UI.
COM
Neu
G
L1
L1
Masse
N
Neu
N
G
Masse
Figure 5 - Power cord-to-wire harness
connection for gas dryer.
Figure 6 - Power cord terminals, gas dryer.
Power Cord
Plug
J9
1
5
1
P/N XXXXXX R
ev X
Date Code YDDD
-xx
XXXX
-XXX
MADE IN CO
O
L1
COM
J8
L1
N
Neu
N
Neu
Power Cord
Plug
ACU
Figure 4b - Plug-to-terminal connections
for electric dryer.
Power
Cord
Wire
Harness
Figure 4 - Power cord-to-wire harness connection for gas dryer.
4. Access the machine electronics without disconnecting any
wiring to the ACU.
5. With an ohmmeter, check for continuity between the
neutral (N) terminal of the plug and J8-3 (white wire) on
the ACU. The left-hand side of figure 5 shows the position
of the neutral terminal (N) on the power cord plug. Also
see figure 1, page 3-7.
¾
If there is continuity, go to step 6.
¾
If there is no continuity, disconnect the white wire of
the main harness from the power cord at the location
illustrated in figure 4. Test the continuity of the power
cord neutral wire as illustrated in figure 5. If an open
circuit is found, replace the power cord. Otherwise, go
to step 6.
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
4.
With an ohmmeter, check the continuity
from L1 and N plug terminals of the power
cord to the terminals for L1 and N on the
ACU. See figure 4b.
¾
If continuity exists for both connections,
go to step 6.
¾
If an open circuit is found, check the integrity
of the connections of the power cord to the
harness in the dryer; harness to the ACU;
and the integrity of the power cord itself.
5.
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.
6.
Visually check that ALL connectors are
fully inserted into the ACU.
7.
Visually check that ALL connectors are
fully inserted into the UI.
8.
Reassemble all parts and panels.
9.
Plug in dryer or reconnect power.
10.
Perform steps under “Service Test Mode”,
page 3, to verify repair.
GAS DRYER (U.S. and Canadian Installations):
1.
Unplug dryer or disconnect power.
2.
Remove the cover plate from the top right
corner of the back of the dryer. See figure 3.
3.
Check that the power cord is firmly
connected to the dryer’s wire harness.
See figure 5.
4.
Access the machine electronics without
disconnecting any wiring to the ACU.
5.
With an ohmmeter, check for continuity
between the neutral (N) terminal of the plug and
J8-3 (white wire) on the ACU. The left-hand
side of figure 6 shows the position of the neutral
terminal (N) on the power cord plug. Also see
figure 2, page 12.
¾
If there is continuity, go to step 6.
¾
If there is no continuity, disconnect the
white wire of the main harness from the
power cord at the location illustrated in
figure 5. Test the continuity of the power
cord neutral wire as illustrated in figure 6.
If an open circuit is found, replace the
power cord. Otherwise, go to step 6.
6.
In a similar way, check for continuity
between the L1 terminal of the plug and J9-2
(black wire) on the ACU.
¾
If there is continuity, go to step 7.
¾
If there is no continuity, check the continuity
of the power cord in a similar way to that
illustrated in figure 6, but for power cord’s
L1 wire.
¾
If an open circuit is found, replace the power
cord. Otherwise, replace the main harness.
7.
Visually check that ALL connectors are fully
inserted into the ACU.
8.
Visually check that ALL connectors are fully
inserted into the UI.
COM
Neu
G
L1
L1
Masse
N
Neu
N
G
Masse
Figure 5 - Power cord-to-wire harness
connection for gas dryer.
Figure 6 - Power cord terminals, gas dryer.
Power Cord
Plug
J9
1
5
1
P/N XXXXXX R
ev X
Date Code YDDD
-xx
XXXX
-XXX
MADE IN CO
O
L1
COM
J8
L1
N
Neu
N
Neu
Power Cord
Plug
ACU
Figure 4b - Plug-to-terminal connections
for electric dryer.
Power
Cord
Wire
Harness
Figure 5 - Power cord terminals, gas dryer.
6. In a similar way, check for continuity between the L1
terminal of the plug and J9-2 (black wire) on the ACU.
¾
If there is continuity, go to step 7.
¾
If there is no continuity, check the continuity of the
power cord in a similar way to that illustrated in figure
5, but for power cord’s L1 wire.
¾
If an open circuit is found, replace the power cord.
Otherwise, replace the main harness.
7. Visually check that ALL connectors are fully inserted into
the ACU.
8. Visually check that ALL connectors are fully inserted into
the UI.
9. Reassemble all parts and panels.
10. Plug in dryer or reconnect power.
11. Perform steps under “Service Test Mode”, page 2-5, to
verify repair.