Often asked: What Does The Cycling Thermostat Do On A Dryer?


How do I know if my dryer thermostat is bad?

After removing the cover from the dryer, perform a simple test on each thermostat, using an ohmmeter. Touch one meter lead to one terminal of the thermostat and the other lead to the other terminal. A reading of infinite resistance means that the circuit is broken — in other words, the thermostat is bad.

What does a dryer safety thermostat do?

A dryer high-limit thermostat ( High Limit Thermostat, Hi-Limit Thermostat, Dryer High-Limit Thermostat ) is a switch that is actuated by temperature change. This high limit thermostat acts as a safety mechanism to keep the dryer from overheating. If your thermostat is malfunctioning, your dryer may not heat.

What causes dryer thermostat failure?

A frayed wire can cause a thermostat to keep going bad. A dryer will blow a thermal fuse if it’s close to overheating. Each time the thermal fuse blows it can interfere with a thermostat’s function and cause it to go bad, too.

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How do I know if my thermal fuse is blown?

Touch the left multimeter lead to the left side of the thermal fuse; touch the right multimeter lead to the right side of the fuse. Keep an eye on the multimeter needle; a needle that fails to move indicates a blown thermal fuse.

Can a thermostat go bad in a dryer?

Bad Dryer Thermistor or Thermostat If the cycling thermostat is defective, the dryer will not heat up. According to PartSelect, if the cycling thermostat in the dryer becomes defective, it will not be able to accurately sense the airflow temperature. It can cause the heater or gas burner to stay on too long.

Will the dryer run if the thermal fuse is blown?

A gas dryer will run but won’t heat if its thermal fuse blows because the dryer overheated (usually because the vent is clogged, so check the vent path).

Where is the dryer thermostat?

The cycling thermostat can be found somewhere in the path of air that is leaving the drum. So, it could be found on the blower wheel housing or inside the venting/exhaust system. Dryer thermostats are usually oval shaped and about an inch and a half in length. Also, there should be two wires leading to each thermostat.

What is the difference between thermal fuse and thermostat?

So a thermal fuse is a safety feature. Thermostat is not a safety feature. Thermostat is a measuring tool. Thermostats measure temperature.

Why is my dryer getting too hot?

Thermostat Malfunction – The thermostat in your dryer controls the level of heat. Air Flow Issues – Basically, fresh air goes into a dryer and is warmed by the heating element to dry your clothes. The hot, damp air is then expelled through the dryer vent.

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Is a thermal fuse the same as a high limit thermostat?

The thermal cut-off ( fuse ) is meant to trip at a higher temperature than that of a high limit thermostat. This is a one time use fuse, so when it does trip, you must replace it. The hi – limit thermostat acts as a safety mechanism that keeps the dryer from overheating.

How much does it cost to replace a dryer thermostat?

Other Costs to Fix a Dryer

Part Material Cost Total Cost
Dryer thermostat $3-20 $180
Bearing $50 $130-$250
Roller $10-30 $90-$230
Timer $50-$70 $130-$270


How do I reset my thermal fuse?


  1. Shut off the power. Unplug the dryer to disconnect electrical power.
  2. Remove the back panel. Move the dryer forward and use a 1/4-inch nut driver to remove the screws from the back panel.
  3. Remove the fuse.
  4. Install the new thermal fuse.
  5. Reattach the back panel.
  6. Plug in the dryer.
  7. Clean the exhaust vent.

What causes a dryer to overheat and shut off?

A dryer vent clogged with lint or other obstructions will force the dryer to work harder, causing the unit to overheat. When too much heat builds up in your dryer, lint or debris in the dryer vent line can ignite, resulting in a dryer fire. The overheat shutoff is the dryer’s last attempt to prevent a fire.

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