Whirlpool Cabrio Service Manual page 20

FOR SERVICE TECHNICIAN'S USE ONLY
4. Check P14-1 and P14-2 to dryer cabinet
ground. If either pin indicates continuity
to ground (short), replace wiring harness;
otherwise, proceed to step 5.
5. If the preceding steps did not correct the
problem, replace the ACU.
TEST #4b: Thermal Fuse
ELECTRIC DRYER: The thermal fuse is wired
in series with the dryer drive motor.
GAS DRYER: The thermal fuse is wired
in series with the dryer gas valve.
ALL DRYERS:
1. Unplug dryer or disconnect power.
2. Slide the top back, remove the front panel,
front bulkhead, and drum to access the
thermal fuse.
3. Using an ohmmeter, check the continuity
across the thermal fuse.
 If the ohmmeter indicates an open circuit,
replace the thermal fuse.
TEST #4c: Thermal Cut-Off
If the dryer does not produce heat, check the
status of the thermal cut-off.
1. Unplug dryer or disconnect power.
2. Access the thermal cut-off by removing
console, top panel, front panel, front
bulkhead, and drum.
3. Using an ohmmeter, check the continuity
across the thermal cut-off. See figures 10a
and 10b, page 17, for location.
4. If the ohmmeter indicates an open circuit,
perform the following:
ALL DRYERS: Replace both the thermal
cut-off and high limit thermostat. In addition,
check for blocked or improper exhaust
system, and, on electric dryers, for heat
element malfunction.
TEST #4d: Gas Valve (Gas Dryer)
1. Unplug dryer or disconnect power.
2. Access the gas valve by sliding the top
back and removing the front panel, front
bulkhead, and drum.
PAGE 20
3. Use an ohmmeter to determine if a
gas valve coil has malfunctioned. Remove
harness plugs. Measure resistance across
the terminals (see figure 11). Readings should
match those shown in the following chart;
if not, replace coils.
GAS VALVE RESISTANCE
Terminals
1 to 2
1 to 3
4 to 5
Black
Light Blue
White
Figure 11 - Measuring gas valve resistance.
4. Disconnect the ignitor plug from the
burner. Using an ohmmeter, measure
the resistance across the ignitor's 2-pin
connector. Resistance should be 50-500 Ω.
 If resistance readings are outside the range
or open, replace the ignitor.
 If resistance readings are within range,
reconnect the ignitor plug and continue
to step 5.
5. Disconnect the wires going to the flame
sensor terminals. Using an ohmmeter, measure
across the two sensor terminals for continuity.
 If there is continuity, reconnect the sensor
wires and continue to step 6.
 If the reading is open, the flame sensor
needs replacing.
6. Reassemble all parts and panels before
reconnecting power.
7. Plug in dryer or reconnect power.
8. Run a high-temp TIMED DRY cycle
(mixed/timed dry on Whirlpool) of at least 2
minutes in duration.
9. Watch the ignitor for a couple of minutes
through the "peek window" in the side. If the
ignitor stays red hot and the gas does not come
out and ignite, the flame sensor needs replacing.
NOTE: If ignitor does not come on, line voltage
may not be present at the gas burner. The motor
centrifugal switch may be suspect.
DO NOT REMOVE OR DESTROY
Resistance
in ohms
1400 ± 70
570 ± 28.5
1300 ± 65
White
Light Blue