FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
PAGE 11
TROUBLESHOOTING TESTS
NOTE:
These checks are done with the dryer
unplugged or disconnected from power.
TEST #1 Supply Connections
This test assumes that proper voltage is present
at the outlet, and for U.S. installations, a visual
inspection indicates that the power cord is
securely fastened to the terminal block (electric
dryer) or wire harness connection (gas dryer).
ELECTRIC DRYER (U.S. 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 2.
3.
With an ohmmeter, check for continuity
between the neutral (N) terminal of the plug and
the center contact on the terminal block. See
figure 3a.
If there is no continuity, replace the power
cord and test the dryer.
If there is continuity, go to step 4.
4.
In a similar way, check which terminal of the
plug is connected to the left-most contact on the
terminal block and make a note of it. This will be
L1 (black wire) in the wiring diagram. See figure 3a.
When this is found, go to step 5.
If neither of the plug terminals have continuity
with the left-most contact of the terminal block,
replace the power cord and test the dryer.
5.
Access the machine control electronics
without disconnecting any wiring to the control
board. See Accessing & Removing the Electronic
Assemblies, page 21.
6.
With an ohmmeter, check for continuity
between the L1 terminal of the plug (found in step
4) and P9-2 (black wire) on the machine control
board. See figure 16, page 22.
If there is continuity, go to step 7.
If there is no continuity, check that wires to the
terminal block are mechanically secure. If so,
replace the main wire harness and test the dryer.
7.
Check for continuity between the neutral (N)
terminal of the plug and P8-3 (white wire) on the
machine control board.
If there is continuity, go to step 8.
If there is no continuity and the mechanical
connections of the wire are secure, replace the
main wire harness.
8.
Visually check that the P2 connector is
inserted all the way into the machine control
electronics.
9.
Visually check that the console electronics
and housing assembly is properly inserted into
the front console.
10.
If both visual checks pass, replace the
console electronics and housing assembly.
11.
Plug in dryer or reconnect power.
12.
Perform steps under DIAGNOSTIC: Console
Button and Indicators, page 2, to verify repair.
13.
If indicators still do not light, perform
TEST #2, page 13.
ELECTRIC DRYER (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 2.
3.
Access the machine control electronics
without disconnecting any wiring to the control
board. See Accessing & Removing the Electronic
Assemblies, page 21.
Remove
Screw
Cover
Plate
COM
N
L1
Power Cord
Plug
Terminal Block
Figure 2.
Remove the cover plate.
Figure 3a.
Plug-to-terminal connections
for electric dryer.
