Applicable Systems
Serie
Symptoms
The dryer heating element is not reaching the target temperature. The drying cycle takes significantly longer and clothes remain damp after the cycle completes.
Possible Causes
- Heating element open-circuited or partially broken
- High-limit thermostat tripped and not auto-resetting
- Airflow restricted by a clogged lint filter or blocked exhaust vent
- Cycling thermostat stuck open, preventing power to the element
Troubleshooting Steps
- Step 1: Check the lint filter and clean thoroughly
A clogged filter reduces airflow and can cause overheating or element failure - Step 2: Inspect and clean the exhaust vent from the dryer to the exterior wall
Use a vent cleaning brush to remove accumulated lint - Step 3: Measure the heating element resistance with a multimeter
An open or very high reading indicates a broken element; replace it - Step 4: Test the high-limit and cycling thermostats for continuity
Replace any thermostat that does not show continuity at room temperature
How to Reset
Reset: If the high-limit thermostat is a manual-reset type, press the red reset button on the heating element housing after cleaning the vent.
Common Replacement Parts
- Heating element: 240V, 4000-5000W (Match to dryer model number)
- High-limit thermostat: Manual or auto-reset, 150C (Match to dryer model)
- Cycling thermostat: Adjustable or fixed, 60-80C (Match to dryer model)
Frequently Asked Questions
- Q: How often should I clean the lint filter?
After every load. A clogged filter reduces efficiency, increases energy use, and is the leading cause of dryer fires.
- Q: How do I clean the exhaust vent?
Disconnect the vent from the dryer and exterior wall. Use a vent cleaning brush kit to remove lint. Clean at least annually.
- Q: What causes element failure?
Restricted airflow causing overheating, age, and voltage spikes. Always maintain clean filters and vents to extend element life.
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Source: OEM Service Manual
Category: Air Dryer
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