FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
PAGE 15
Replace the heater if it is electrically open.
Replace both the thermal cut-off and high limit
thermostat (inlet thermistor/high limit thermostat
assembly on Amana models) if either the thermal
cut-off or the high limit thermostat is electrically
open.
5.
If no open circuit is detected, remove the P14
(P4 on Amana models) connector, then measure
the resistance between P14-3 (P4-3 on Amana
models) (red wire) and P14-6 (P4-6 on Amana
models) (red wire) at the connector. See figure 16,
page 22, for connector location; and Accessing &
Removing the Electronic Assemblies, page 21.
If 5–15 k
Ω
are measured, replace the
machine control electronics.
If the resistance is less than 1 k
Ω
, replace
the outlet thermistor.
GAS DRYER:
1.
Unplug dryer or disconnect power.
2.
Remove the toe panel to access the thermal
components.
3.
Perform TEST #4b, page 17. If the thermal
fuse is OK, go to step 4.
4.
Perform TEST #4c, page 17. 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.
If there is an open circuit, replace the high
limit thermostat and the thermal cut-off.
Otherwise, go to step 6.
6.
Perform TEST #4d, page 18. 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
figure 16, page 22, for connector location; and
Accessing & Removing the Electronic Assemblies,
page 21.
ALL DRYERS:
Remove the P14 (P4 on Amana
electric models) connector, then measure the
resistance between P14-3 (P4-3 on Amana
electric models) (red wire) and P14-6 (P4-6
on Amana electric models) (red wire) at the
connector.
If 5–15 k
Ω
are measured, replace the
machine control electronics.
If the resistance is greater than 20 k
Ω
,
replace the outlet thermistor.
Electric Dryer
Gas Dryer
Figure 10.
Thermal Components, viewed
from front.
Thermal
Cut-Off
Flame
Sensor
High Limit Thermostat
High Limit Thermostat
Heater
Element
Thermal Cut-Off
Outlet
Thermistor
Outlet
Thermistor
Thermal Fuse
Thermal Fuse