Troubleshooting guide

FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
PAGE 15
TEST #4d Gas Valve, Gas Dryer
1. Unplug dryer or disconnect power.
2. Access the gas valve.
3. Use an ohmmeter to determine if a gas valve
coil has failed. Remove harness plugs. Measure
resistance across terminals. Readings should
match those shown in the following chart.If not,
replace coil.
Terminals Resistance (Ω)
1 to 2 1365 ± 60
1 to 3 560 ± 25
4 to 5 1325 ± 55
IMPORTANT: Be sure all
harness wires are looped
back through the strain
relief after checking or
replacing coils.
TEST #5 Moisture
Sensor
NOTE: This test is started
with the dryer completely assembled.
This test is performed when an automatic cycle
stops too soon, or runs much longer than expected.
NOTE: Dryer will shut down automatically
after 2-1/2 hours.
1. Activate the Diagnostic Test Mode.
See procedure on page 2.
2. Open the dryer door.The dryer will play a tone
and“Door Open”text will be displayed on the LCD.
3. Locate the two metal sensor strips on the
face of the lint screen housing. Using a wet cloth
or one finger, jointly touch both strips.

If a tone is heard and“Moisture Sensor:
Closed” is displayed on the LCD, the sensor
passes the test. Go to step 8.

If a tone is not heard, or a tone is heard
before touching both moisture strips, continue
with step 4.
NOTE: Overdrying may be caused by a short
circuit in the sensor system.
4. Access the machine control electronics.See
Accessing & Removing the Electronic Assemblies,
page 17. Remove connector P13 from the circuit
board.Check the main harness connections
between the sensor harness and machine control
for a short or open circuit.

Replace the main harness, if necessary.

If harness is OK,continue with step 5.
5. Access the moisture sensor. Disconnect the
sensor from the wire harness. See figure 11.
6. Measure the resistance
across the outermost
contacts of the cable that
includes the two red MOVs.

If a small resistance is measured, check for
debris across moisture strips inside the drum;
clean if debris is present.If debris is not present,
replace sensor harness.

If a small resistance is not measured, continue
with step 7.
FRONT
Drum
Harness
Connection
MOVs
(Metal Oxide
Varistors)
Blower
Housing
Figure 11. Disconnect sensor from wire
harness.
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