How to Fix / Troubleshooting

Safety first: Unplug the unit. Overheating can be a fire hazard; do not continue using the dryer until the issue is resolved.

1. Thorough lint cleaning:
- Remove and clean the lint filter.
- Access internal ducts and remove lint buildup.
- For ventless models, clean the condenser and internal air passages.
2. Check external venting (if applicable):
- Inspect the vent hose for kinks or crushing.
- Clean the wall vent and exterior hood.
3. Test thermostats:
- Access the heater housing and test the cycling thermostat and high-limit thermostat.
- Replace any thermostat that is stuck closed or out of specification.
4. Control board relay:
- If the heater remains on when it should be off, the heater relay on the main PCB may be welded closed; board replacement is required.
5. Professional service is recommended for persistent overheating issues.

Washer-dryer combo shows HE1; dryer overheats or shuts down quickly.

Possible Causes