Thermal Fuse & Exhaust Thermistor; High-Limit Thermostat & Thermal Cutoff (Tco) (Gas Models Only) - Maytag MED5800TW - Electric Dryer Technical Education

Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
THERMAL FUSE & EXHAUST
THERMISTOR
Exhaust Thermistor
Refer to page 4-12 for the procedure for access-
ing the thermal fuse & exhaust thermistor.
1. Unplug dryer or disconnect power.
2. Turn off gas supply to dryer.
3. Disconnect the wires or connector from
the component under test.
4. Set the ohmmeter to the R x 1 scale.
5. Touch the ohmmeter test leads to the
thermal fuse terminals. The meter should
indicate a closed circuit (0 Ω). NOTE: The
thermal fuse opens at 196°F (91°C).
6. Set the ohmmeter to the R x 100K scale.
7. Touch the ohmmeter test leads to the
exhaust thermistor terminals. The meter
should indicate as shown in the following
chart.
EXHAUST THERMISTOR RESISTANCE
TEMP.
RES.
°F (°C)
k Ω
50° (10°) 19.0 – 22.0
60° (16°) 14.8 – 16.8
70° (21°) 11.5 – 13.5 100° (38°)
Electrical Shock Hazard
Thermal Fuse
TEMP.
RES.
°F (°C)
k Ω
80° (27°) 8.5 – 10.5
90° (32°) 6.8 – 8.8
5.0 – 7.0
WARNING
HIGH-LIMIT THERMOSTAT &
THERMAL CUTOFF (TCO)
(GAS MODELS ONLY)
Refer to page 4-13 for the procedure for ac-
cessing the high-limit thermostat and thermal
cutoff (TCO).
1. Unplug dryer or disconnect power.
2. Turn off gas supply to dryer.
3. Disconnect the wire connectors from the
high-limit thermostat or thermal cutoff ter-
minals.
4. Set the ohmmeter to the R x 1 scale.
5. Touch the ohmmeter test leads to the
high-limit thermostat or the thermal cutoff
(TCO) terminals. The meter should indi-
cate a closed circuit (0 Ω) for both com-
ponents.
5-2
High-Limit
Thermostat
Thermal
Cutoff