Electric Dryer - Whirlpool WED94HEXW1 Technical Sheet

FOR SERVICE TECHNICIAN'S USE ONLY
NOTE: On the gas dryer, the inlet thermistor
is located below the CCU bracket at the drum
inlet vent. Refer to strip circuit on page 21 to
diagnose heater system.
Dryer does not heat:
Locate the components using figures 11a and
11b. To access heater system components, see
Dryer Disassembly Instructions, page 22.
ELECTRIC DRYER ONLY:
3 Quick Check: Perform steps under "Install
Diagnostics", page 5, to test for L1 and L2
line voltage.
• I f L1 is present, the thermal cutoff is
functional.
• I f L2 is present, the centrifugal switch, high
limit thermostat, and the side of the heater
connected to heater relay 1 are functional.
1. Unplug dryer or disconnect power.
2. Remove front panel to access thermal
components.
3. Check Heaters—on the CCU, use an
ohmmeter to measure the resistance between
the violet wire terminal on heater relay #1
and the violet wire terminal on heater relay #2.
 If the resistance is ≤ 50 Ω, go to step 5.
 If an open circuit is detected, go to step 4.
Inlet Thermistor/High Limit
Thermostat Assembly
Thermal
Cut-Off
Thermal Fuse
Figure 11a - Thermal components,
electric dryer, viewed from front.
PAGE 14
Heater
Element
Outlet
Thermistor

Electric Dryer

High Limit Thermostat
Flame
Sensor
Thermal Fuse
Figure 11b - Thermal components,
gas dryer, viewed from front.
4. Visually check the wire connections between
each relay and their respective heaters. If the
connections look good, check for continuity
across each heater (violet wire to center red
wire). Refer to strip circuit on page 21.
 Replace the heater if it is electrically open.
5. Check Thermal Cut-off—on the CCU, use
an ohmmeter to measure continuity between
P9-2 (L1) and the black wire terminal on heater
relay #1. Then, measure continuity between P9-2
(L1) and the black terminal on heater relay #2.
 If there is continuity, go to step 7.
 If an open circuit is detected, go to step 6.
6. Visually check the wire connections
between each relay (black wire) and the
thermal cut-off. If the connections look good,
check for continuity across the thermal cut-off.
 Replace the thermal cut-off if it is
electrically open.
7. Check High Limit Thermostat—visually
check the wire connections from the heaters
and centrifugal switch to the high limit
thermostat. If the connections look good, check
for continuity across the high limit thermostat.
 Replace the high limit thermostat if it is
electrically open.
DO NOT REMOVE OR DESTROY
Thermal
Cut-Off
Outlet
Thermistor
Gas Dryer