Whirlpool Duet Sport WED8300SW Manual page 82

ELECTRIC DRYER:
1. Unplug dryer or disconnect power.
2. Remove the toe panel to access the
thermal components. See Figure 14.
3. Using an ohmmeter and referring to the
wiring diagram, measure the resistance
from the red wire at the thermal cut-off to
the red wire at the heater.
• If the resistance is about 10 ohms, go to
step 5.
• If an open circuit is detected, go to step 4.
4. Visually check the wire connections to
the thermal cut-off, high limit thermostat,
and heater. If connections look good,
check for continuity across each of these
components. Replace the heater if it is
electrically open. Replace both the thermal
cut-off and high limit thermostat if either
one is electrically open.
5. If no open circuit is detected, measure
the resistance between P14-3 (red-white
wire) and P14-6 (red-white wire) at the
machine control board. See Figure 17;
and Accessing & Removing the Electronic
Assemblies.
Thermal Cut-Off
High Limit Thermostat
Thermal Fuse
Figure 11.
Heater Element
Thermistor
Electric Dryer
Thermal Components, viewed from front.
If 5–15k Ω are measured, replace the
•
machine control electronics.
If the resistance is less than 1k Ω, replace
•
the thermistor.
GAS DRYER:
1. Unplug dryer or disconnect power.
2. Remove the toe panel to access the
thermal components. See Figure 14.
3. Perform TEST #3b. If the thermal fuse is
OK, go to step 4.
4. Perform TEST #3c. If the thermal cut-off is
OK, go to step 5.
5. Locate the high limit thermostat. See
Figure 11. Measure the continuity through
it by connecting the meter probes on the
red wire and blue wire.
• If there is an open circuit, replace the
high limit thermostat and thermal cut-
off.
• Otherwise, go to step 6.
6. Perform TEST #3d (Gas Valve Test). If
this is OK, replace the machine control
electronics.
High Limit
Thermostat
Flame
Sensor
Thermal Fuse
Thermistor
Gas Dryer
6-10
Thermal
Cut-Off