How to Test a Dryer Moisture Sensor How to Test a Dryer Moisture Sensor
A dryer moisture sensor can stop working without notice, until you notice your clothes being over dried or still wet at the end of the cycle. It is a good practice to test the dryer moisture sensor periodically. There are two types of moisture-detecting sensors for dryers. Once you understand how they work you will see how to test each one.
1. Sensor Bar
These sensors contain digits that protrude outwardly. They work on an electrical current and the moisture from the clothing.
The first step to test is to place completely dry clothes in the dryer and turn on the dryer; it should run for a few moments and then shut down right away.
Secondly, place damp clothes into the dryer, turn on the dryer and watch the timer. As the clothes begin to dry the timer will move and shut off.
The timer is regulated by the thermostat. The thermostat rests in a closed position. To test this type of moisture sensor, place damp clothes in the dryer. Watch the timer; as the clothes begin to dry, the thermostat should open and the timer will move forward ,eventually shutting off.