Heat Will Not Shut Off; Exhaust Thermistor - Kenmore Oasis 110.67032600 Manual

DUAL ELEMENT MODEL:
1. Unplug dryer or disconnect power.
2. Remove the front panel/drum assembly
to access the thermal components. See
Removing the Front Panel/Drum Assem-
bly.
3. Using an ohmmeter and referring to the
appropriate wiring diagram and strip cir-
cuit, (see Section 7), measure the resis-
tance from the black wire at the thermal
cut-off to the red wire at the high limit
thermostat.
• If an open circuit is not detected, 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 and the high limit ther-
mostat. If connections look good, check
for continuity across each of these com-
ponents. Replace both the thermal cut-
off and high limit thermostat if either one
is electrically open.
5. Measure the resistance between the red
wires at the heater.
• If an open circuit is not detected, go to
step 7.
• If an open circuit is detected, go to
step 6.
6. Visually check the wire connections to
the heater. If the connections look good,
replace the heater.
7. Measure the resistance at the heater
between the violet wire and the red wire
with the larger terminal.
• If an open circuit is not detected, go to
step 9.
• If an open circuit is detected, go to
step 8.
8. Visually check the wire connections to
the heater. If the connections look good,
replace the heater assembly.
9. If no open circuit is detected, remove the
P4 connector, then measure the resis-
tance between P4-3 (red wire) and P4-6
(red wire) at the connector. See Figure 16
for connector location; and Accessing &
Removing the Electronic Assemblies.
• If 5–15 k ohms are measured, replace
the machine control electronics.
• If the resistance is less than 1K ohm,
replace the exhaust thermistor.

Heat will not shut off:

1. Unplug dryer or disconnect power.
2. Access the machine control electronics,
remove the P4 connector, then measure
the resistance between P4-3 (red wire)
and P4-6 (red wire) at the connector. See
Figure 16, for connector location; and Ac-
cessing & Removing the Electronic As-
semblies.
• If 5–15 k ohms are measured, replace
the machine control electronics.
• If the resistance is greater than 20 k
ohms, replace the exhaust thermistor.
TEST #4a Thermistors

EXHAUST THERMISTOR

The machine control electronics monitors the
exhaust temperature using the thermistor, and
cycles the heater relay on and off to maintain
the desired temperature.
Begin with an empty dryer and a clean lint
screen.
1. Plug in dryer or reconnect power.
2. Start the Timed Dry cycle.
3. If after 60 seconds, F-22 or F-23 flashes
in the display and the dryer shuts off, the
thermistor or wire harness is either open
or shorted.
• Unplug dryer or disconnect power.
• Check wire connections at the machine
control electronics and thermistor. See
Accessing & Removing the Electronic
Assemblies, and for thermistor loca-
tion, see Figure 10.
6-10