279838 Dryer Heating Element Assembly:

Function:
The heating element provides heat to the dryer.

Cause of Breakdown：

The heating element can break as a result of wear and tear. This can be material fatigue or prolonged high temperature exposure.

279816 Dryer Thermal Cut-Off Fuse Kit:

Attaches to:
Both components are mounted on the heater housing.

Function:
The thermal cut-off prevents the dryer from overheating when the dryer high limit thermostat fails in a closed circuit condition.
Cause of Breakdown：
This part fails when the heater housing does not have adequate airflow through it; this is normally caused by restriction in the exhaust vent, plugged lint screen, or broken blower wheel.

3392519 Dryer Thermal Fuse:

Function:

It is a safety mechanism that stops the flow of electricity to the motor circuit when a dryer overheats.

Importance:

When this fuse is faulty, your dryer will not start. This is a one-time fuse, meaning it cannot be re-set.

Cause of Breakdown：

A thermal fuse fails when the exhaust temperature exceeds the fuse rating, that is when the temperature rises above the temperature that the fuse is designed to handle. This can occur when a heating element is shorted, a regulating thermostat or thermister fails, or with a partially restricted exhaust vent. This is a one-time fuse, meaning it cannot be re-set.