Whirlpool 9700S User Manual download pdf (Page 52)

5-3

THERMAL FUSE

Refer to page 4-7 for the procedure for servic-

ing the thermal fuse.

Electric Dryers: The thermal fuse is wired in

series with the drive motor. If the thermal fuse

opens, 91°C (196°F), power to the motor is

turned off. A centrifugal switch on the motor

also opens the heater circuit.

Once the thermal fuse has opened, it will not

reset, and must be replaced. Check for a failed

thermistor, or a shorted heater element.

Gas Dryers: The thermal fuse is wired in

series with the gas valve. If the thermal fuse

opens, 91°C (196°F), power to the valve is

turned off. A centrifugal switch on the motor

also opens the heater circuit.

Once the thermal fuse has opened, it will not

reset, and must be replaced. Check for a failed

thermistor.

Blower

Housing

Thermal Fuse

91°C (196°F)

1. Unplug dryer or disconnect power.

2. Turn off gas supply to dryer.

3. Disconnect the wires from the thermal fuse.

4. Set the ohmmeter to the R X 1 scale.

5. Touch the ohmmeter test leads to the ther-

mal fuse terminals. The meter should indi-

cate continuity (0 Ω). If the meter indicates

an open circuit (infinite), replace the ther-

mal fuse.

Electrical Shock Hazard

Disconnect power before servicing.

Replace all parts and panels before operating.

Failure to do so can result in death or electrical shock.

WARNING

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Whirlpool 9700S User Manual Page 52