LG Dryer Error Code hE

The hE code on an LG dryer means the control board detected an invalid heating temperature during a drying cycle. This indicates a problem within the heating system, which can involve the exhaust vent, the thermistor, the thermal fuse, or the heating element or gas burner components. The dryer triggers this code when the measured temperature does not match what the control board expects during normal operation. Diagnosing the vent system and testing the thermistor are the recommended first steps.

It is not recommended to continue running the dryer while the hE code is active. If the error is caused by a blocked vent, continued operation can create a fire hazard due to excessive heat buildup inside the appliance and ductwork. If the heating system is not functioning correctly, the dryer also may not perform its intended function, leaving clothes damp. Stop using the dryer until the root cause has been identified and corrected.

Resetting the dryer by unplugging it for a few minutes may temporarily clear the hE code, but the error will return if the underlying problem has not been fixed. A reset does not repair a blocked vent, a failed thermistor, or a burned-out heating component. Use a reset only as part of the diagnostic process after completing a repair, to confirm the fault has been resolved.

Some causes of the hE code are DIY-friendly, particularly cleaning a blocked exhaust vent, which requires no special tools and should be the first step taken. Testing and replacing a thermistor or thermal fuse is also within reach for someone comfortable using a multimeter and working around appliance components with the power disconnected. Heating element or gas valve repairs require more technical knowledge, and gas-related work in particular is best handled by a qualified technician.

Repair costs vary depending on the failed component. A thermistor or thermal fuse replacement typically falls in the range of $15 to $60 for the part alone, with labor adding $75 to $150 if a technician is used. A heating element replacement can range from $30 to $100 for the part, plus labor. Vent cleaning, if done professionally, generally costs between $80 and $175 depending on duct length and accessibility.