Samsung Dryer Error Code: hE1 — Heater / Temperature Fault
The hE1 code on a Samsung dryer commonly indicates a heater or temperature-sensing fault. It appears when the dryer detects an abnormal condition in the heating circuit or temperature sensors — for example, an open or shorted thermistor, a blown thermal fuse, a failed heating element, or a control board problem. When hE1 occurs users frequently notice longer drying times, no heat, clothes remaining damp, or intermittent heating. In some cases a blocked vent or restricted airflow causes overheating and trips a safety device, which in turn triggers the hE1 code. Because heating-system faults can lead to overheating and pose fire risk if left unaddressed, take this code seriously and follow safe troubleshooting steps.
Common Causes
- Failed heating element (open circuit or shorted)
- Blown thermal fuse or high-limit cutoff thermostat
- Faulty temperature sensor / thermistor
- Defective main control board or relay that controls the heater
- Wiring harness damage or loose connections in the heating circuit
- Restricted exhaust vent or clogged lint screen causing overheating
- Faulty door switch or moisture sensor that results in incorrect cycles (less common)
Troubleshooting Steps
- Safety first: unplug the dryer or switch off the breaker before inspecting any internal parts. Ensure the dryer is cool and disconnected from power.
- Check the venting and airflow: clean the lint trap and remove lint from the dryer cabinet, exhaust hose, and outside vent. Restricted airflow can cause overheating and false heater errors.
- Power cycle the dryer: plug the dryer back in and run a short cycle to see if the code returns. Sometimes a temporary fault clears after a reset, but recurrent codes require further diagnosis.
- Inspect visible wiring and connectors behind the dryer and at the terminal block. Look for burnt, melted, or disconnected wires that could interrupt the heating circuit.
- Test the thermal fuse and high-limit thermostat for continuity with a multimeter. A blown thermal fuse usually reads open; if open, replace the thermal fuse and address the underlying airflow problem before operating the dryer.
- Test the heating element for continuity. An open heating element will not produce heat and can trigger hE1. Replace the element if it shows no continuity or visible damage.
- Check the thermistor / temperature sensor: measure resistance and compare to the manufacturer specification (refer to service manual). An out-of-range or open sensor can cause hE1.
- If electrical parts test good, inspect the control board for burnt components or failed relays. Control board issues may require professional diagnosis or replacement.
- After replacing parts, clear the error (power cycle) and run a test load. Monitor the dryer for correct he