LG Dryer Error Code = CL (Child Lock Display)
Error Condition = An indication that the Child Lock feature is active.
Check and or Repair = Press and hold the key labeled CHILD LOCK for 3 seconds to disable the Child Lock feature.

LG Dryer Error Code = tE1
Error Condition = Thermistor failure
Check and or Repair = The control detects the temperature sensor is defective. Remove power from the dryer and measure resistance through the thermistor. It should measure about 10,000 ohms. If the thermistor is defective then replace it.
MORE INFO:
-Unplug the dryer, or trip the circuit breaker supplying power to the dryer.
-While the dryer remains without power, press and hold the START/PAUSE button for 5 seconds.
-Restore power to the dryer and try to run another cycle.
Replacement Parts = Thermistor

LG Dryer Error Code = tE2
Error Condition = Thermistor failure
Check and or Repair = The control detects the temperature sensor is defective. Remove power from the dryer and measure resistance through the thermistor. It should measure about 10,000 ohms. If the thermistor is defective then replace it.
MORE INFO:
-Unplug the dryer, or trip the circuit breaker supplying power to the dryer.
-While the dryer remains without power, press and hold the START/PAUSE button for 5 seconds.
-Restore power to the dryer and try to run another cycle.
Replacement Parts = Thermistor

LG Dryer Error Code = tE3
Error Condition = Thermistor failure
Check and or Repair = The control detects the temperature sensor is defective. Remove power from the dryer and measure resistance through the thermistor. It should measure about 10,000 ohms. If the thermistor is defective then replace it.
MORE INFO:
-Unplug the dryer, or trip the circuit breaker supplying power to the dryer.
-While the dryer remains without power, press and hold the START/PAUSE button for 5 seconds.
-Restore power to the dryer and try to run another cycle.
Replacement Parts = Thermistor

LG Dryer Error Code = E13
Error Condition = The drain hose is kinked, crushed, clogged, or the water in the sump is frozen.
Check and or Repair = Check that the drain hose is not kinked, twisted, or clogged with water at the end of the hose.
-Press the START/PAUSE button to start the dryer again after checking that the drain hose is not kinked, twisted, or clogged.

LG Dryer Error Code = nP
Error Condition = There is a problem with the electrical wiring in the home and no current is being detected at the heater.
Check and or Repair = Check power

LG Dryer Error Code = dE
Error Condition = Door switch error
Check and or Repair = Check the operation of the door switch. Do this by using the diagnostic test mode. If the door switch is defective then it needs to be replaced.
Replacement Parts = Door switch