Troubleshooting guide

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Replace the heater if it is electrically open.
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Replace both the thermal cut-off and inlet
thermistor/high limit thermostat assembly if either
the thermal cut-off or the high limit thermostat is
electrically open.
5. If no open circuit is detected,remove the P14
connector, then measure the resistance between
P14-3 (red wire) and P14-6 (red wire) at the
connector. See Accessing & Removing the
ElectronicAssemblies, page 17.
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If 5–15 kΩ are measured, replace the
machine control electronics.
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If the resistance is less than 1 kΩ, replace
the outlet thermistor.
GAS DRYER:
1. Unplug dryer or disconnect power.
2. Access the thermal components.
3. Perform TEST #4b,page 14. If the thermal
fuse is OK, go to step 4.
4. Perform TEST #4c,page 14. If the thermal
cut-off is OK, go to step 5.
5. Locate the high limit thermostat.See figure
10. Measure the continuity through it by
connecting the meter probes on the red wire
and black wire terminals.
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If there is an open circuit,replace the high
limit thermostat and the thermal cut-off.
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Otherwise,go to step 6.
6. Perform TEST #4d,page 15. If this is OK,
replace the machine control electronics.
Heat will not shut off:
1. Unplug dryer or disconnect power.
2. Access the machine control electronics.See
Accessing & Removing the Electronic Assemblies,
page 17.
ALL DRYERS:
Remove the P14 connector,
then measure the resistance between P14-3
(red wire) and P14-6 (red wire) at the connector.
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If 5–15 kΩ are measured, replace the
machine control electronics.
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If the resistance is greater than 20 kΩ,
replace the outlet thermistor.
FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
PAGE 12
Electric Dryer
Gas Dryer
Figure 10. Thermal Components, viewed
from front.
Thermal
Cut-Off
Flame
Sensor
Inlet Thermistor/High Limit
Thermostat Assembly
High Limit Thermostat
Heater
Element
Thermal Cut-Off
Outlet
Thermistor
Outlet
Thermistor
Thermal Fuse
Thermal Fuse