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SPLIT-TYPE ROOM AIR CONDITIONER
Operation is erratic,
unpredictable, or unit is
unresponsive
Interference from cell phone towers and remote boosters may cause the unit to malfunction.
In this case, try the following:
• Disconnect the power, then reconnect.
• Press ON/OFF button on remote control to restart operation.
NOTE! If problem persists, contact a local dealer or your nearest customer service center. Provide them with a detailed
description of the unit malfunction as well as your model number.
ERROR DISPLAY
An error code will be displayed when the indoor unit encounters a recognized error.
Display
Error Information
dF
Normal Display, not error code. Defrost
SC
Normal Display, not error code. Self clean
CL
Normal Display, not error code. Filter cleaning reminder(power on display for 15 seconds)
nF
Normal Display, not error code. Filter replacement reminder(power on display for 15 seconds)
FP
Normal Display, not error code. Heating in room temperature under 8°C
FC
Normal Display, not error code. Forced cooling
CP
Normal Display, not error code. Remote switched off
Eh 00
Indoor unit EEPROM parameter error
EL 01
Indoor / outdoor unit communication error(for some models)
EH 02
Zero-crossing signal detection error(for some models)
EH 03
The indoor fan speed is operating outside of the normal range
EC 51
Outdoor unit EEPROM parameter error(for some models)
EC 52
Condenser coil temperature sensor T3 or Outdoor room temperature sensor T4 is in open circuit or has short
circuited(for some models)
EC 53
Outdoor room temperature sensor T4 is in open circuit or has short circuited
EC 54
Compressor discharge temperature sensor TP is in open circuit or has short circuited
EC 56
Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited(for free-match indoor units)
EH 60
Indoor room temperature sensor T1 is in open circuit or has short circuited
EH 61
Evaporator coil temperature sensor T2 is in open circuit or has short circuited
EC 07
The outdoor fan speed is operating outside of the normal range(for some models)
EH 0b
Indoor PCB / Display board communication error
EL 0C
Refrigerant leak detected
PC 00
IPM malfunction or IGBT over-strong current protection
PC 01
Over voltage or over low voltage protection
PC 02
High temperature protection of IPM module or High pressure protection(for some models)
PC 04
Inverter compressor drive error
PC 08
Current overload protection(for some models)
PC 03
High pressure protection(for some models)
PC 0L
Low ambient temperature protection
--
Indoor units mode conflict
ATTENTION! The display board may show a garbled code or a code undefined by the service manual. Ensure that this code
is not a temperature reading.
When troubles occur, please check the following points before contacting a repair company.
Problem
Possible Causes
Solution
Temperature setting may be higher than
ambient room temperature
Lower the temperature setting
The heat exchanger on the indoor or outdoor
unit is dirty
Clean the affected heat exchanger
The air filter is dirty
Remove the filter and clean it according to
instructions
The air inlet or outlet of either unit is blocked
Turn the unit off, remove the obstruction and turn
it back on
Doors and windows are open
Make sure that all doors and windows are closed
while operating the unit
Poor Cooling
Performance
Excessive heat is generated by sunlight
Close windows and curtains during periods of
high heat or bright sunshine
Too many sources of heat in the room (people,
computers, electronics, etc.)
Reduce amount of heat sources
Low refrigerant due to leak or long-term use
Check for leaks, re-seal if necessary and top off
refrigerant
SILENCE function is activated (optional
function)
SILENCE function can lower product performance
by reducing operating frequency. Turn off SILENCE
function.
USER GUIDE
33