Error code
HE
Meaning
Your dryer isn't heating properly or is overheating
Critical
What to do
Why this happens
Heater malfunction may be due to thermostat failure, restricted vent system causing excessive heat buildup, or thermistor failure.
How to fix it
Clean out the exhaust vent from the dryer to the outside wall. If the vent is clear and the error continues, the heating element or related safety switch may need replacing — call a technician.
SourceSamsung service manual