34 35
FOR LG TECHNICIAN
34
Error Code Possible Causes Solutions
tE1
or
tE2
• Temperature sensor failure•
HS
• Humidity Sensor failure.•
PS
or
PF
or
nP
• Electric dryer power cord is not
connected correctly, or house power
supply is incorrect.
• House fuse is blown, circuit breaker has
tripped, or power outage has occurred.
• Check the power supply or the connection of
power cord to the terminal block. Refer to the
Connecting electric dryers section of this
manual for complete instructions.
• Reset circuit breaker or replace fuse. Do not
increase the fuse capacity. If the problem is a
circuit overload, have it corrected by a quali-
The display
Do not use the dryer until the exhaust
system has been cleaned and/or repaired.
Using the dryer with a severely restricted exhaust
property damage.
Check the outside dryer vent while the dryer is
.
If ther exhaust system is extremely long, have it
repaired or rerouted.
Keep the area around the dryer clean and free
of clutter.
Check the vent hood for damage or lint clogging.
Make sure the area around the vent hood is clear.
FLOW SENSE
TM
indicator shows
four bars during
the drying cycle
or the display
drying.
many turns/restrictions.
ductwork due to lint buildup or
debris.
restriction in the external dryer
venting.
Install a shorter or straighter duct run. See the
Instructions.
Ductwork should be checked/cleaned soon.
Dryer can be used in this condition, but drying
times may be longer.
TM
If exhaust restrictions are sensed by the
FLOW SENSE system, the indicator will remain
on for two hours after the end of the cycle.
Opening the door or pressing the POWER button
noitidnoc tcud eht kcehC •
If the FLOW SENSE
TM
LED is turned on, check the
exhaust system for restrictions and damage. Repair or
replace the exhaust system as needed.
Avoid long runs or runs with multiple elbows or
bends.
Excess or crushed
transition duct
Too many elbows or
exhaust too long
Check for blockages and lint buildup.
Make sure the ductwork is not crushed or restricted.
Crushed or
damaged
exhaust
Lint buildup
or blockage
9-3 Troubleshooting for flow sensor dryer
10
DIAGNOSTIC TEST
ACTIVATING THE DIAGNOSTIC TEST MODE
1. UNIT must be in standby (unit plugged in, display off)
2. Press POWER while pressing MORE TIME and LESS TIME simultaneously.
3. Press START/PAUSE button to advance through diagnostics.
To check pump operation:
When pressed 4 times in the test mode, If the AD value of the pump is higher than 10 on the display, the pump is normal.
If it is lower than 10, E5 error will be displayed.
1.This TEST should be used for factory test /service test. Do not use this DIAGNOSTIC TEST other than specified.
2.Activating the heater manually with the door open may trip the Thermostat attached to the heater, therefore do not
activate it manually. (Do not press the door switch to operate the heater while the door is open )
Pressing the
START/PAUSE
None
Standard
Thermistor opentE1
Thermistor shortedtE2
AG Thermistor open or shortedtE4
Pump Error
Pump runs
E5
Power off
OO
Motor runs
Displays Moisture Sensor Operation
If moisture sensor is contacted with
damp cloth. The display number is
below180 under normal circumstances.
255 = Low
moisture
30 = High
moisture
1nES(Elec Type)
1n9S(Gas Type)
d02
U03
DISPLAY PGM
MAIN PGM ver(1nES - U03 - d02)
Current Temp.
(5~70)
Current Temp.
(5~70)
Pump AD valve
(11~255)
Electric control
and
Temperature sensor
ELECTRIC TYPE
Motor+Heater 1(2700 W)
GAS TYPE
Motor
ELECTRIC TYPE
Motor+Heater 1+Heater 2
(5400 W)
GAS TYPE
Motor+Gasvalve
Once Motor+Controller
Motor, Pump, Heater 2 off
Loads off, Controller off
Motor+Pump+
Heater 2(runs for 1 second)
(Heater 1 off)
Twice
3 times
4 times
5 times
6 times
CHECKING
ACTION
DISPLAY CHECKPOINT
ELECTRIC TYPE Heater 1 is energized
- 2700 W
GAS TYPE is not opened
(Temperature in the drum is displayed in
degrees C.)
ELECTRIC TYPE: Heater 1 and heater 2 are
energized - 5400 W
GAS TYPE: Gas valve is energized (Temperature in
the drum is displayed in degrees C.)
DUAL SENSOR FAILURE CHECK :
Values of TEMPERATURE and HUMIDITY are
‘000’, the display shows SE ERROR.
FOR LG TECHNICIAN
NFC modulenU
NFC module open or shortednC
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