HE2
Samsung
Heat Pump System Error / Heater Relay Fault
Heat pump or hybrid Samsung dryer shows HE2; dryer may run with little or no heat.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Faulty heater relay on main PCB, Failed heat pump compressor (on heat pump models), Open temperature sensor (thermistor), Wiring issue in heater circuit
How to Fix / Troubleshooting
Safety: Unplug the dryer. Heat pump systems contain high-voltage and refrigerant components.
- Power reset: Turn off the breaker for 5 minutes and restore power to clear transient PCB faults.
- Check filters and condenser (heat pump models): Clean the lint filter, internal filter screens, and condenser unit per the user manual. Restricted airflow can trigger errors.
- Inspect wiring: Access the main PCB and heater/heat pump connections. Look for burnt spots, loose connectors, or damaged wires.
- Test thermistor: Locate the drum outlet thermistor and measure resistance at room temperature; compare to Samsung specs (commonly ~10–12 kΩ at 25°C). Replace if open/shorted.
- Professional service: If the compressor or PCB heater relay is suspected, contact a qualified technician; compressor and sealed system work require specialized tools and certification.
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Repair Difficulty
Professional Required
5/5
Required Part
Main PCB (Heater Relay Circuit)
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