En-12
16. CUSTOMER GUIDANCE
Explainthefollowingtothecustomerinaccordancewiththeoperatingmanual:
(1)Startingand stoppingmethod,operationswitching,temperatureadjustment,timer,air
owswitching,andotherremotecontrolunitoperations.
(2)Airlterremovalandcleaning,andhowtousetheairlouvers.
(3)Givetheoperatingmanualtothecustomer.
17. ERROR CODES
If you use a wireless remote controller, the lamp on the photo detector unit will output error
codes by way of blinking patterns. If you use a wired remote controller, error codes will ap-
pear on the remote control display. See the lamp blinking patterns and error codes in the
table.Anerrordisplayisdisplayedonlyduringoperation.
Error display
Wired
remote
controller
Error code
Description
OPERATION
lamp
(green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
●
(1)
●
(1)
◊
Serial communication error
●
(1)
●
(2)
◊
Wiredremotecontroller
communication error
●
(1)
●
(5)
◊
Check run unfinished
●
(2)
●
(1)
◊
UnitnumberorRefrigerantcircuit
address setting error
[SimultaneousMulti]
●
(2)
●
(2)
◊
Indoor unit capacity error
●
(2)
●
(3)
◊
Combination error
●
(2)
●
(4)
◊
•Connectionunitnumbererror
(indoorslaveunit)
[SimultaneousMulti]
•Connectionunitnumbererror
(indoorunitorbranchunit)
[FlexibleMulti]
●
(2)
●
(7)
◊
Master unit, slave unit set-up error
[SimultaneousMulti]
●
(3)
●
(2)
◊
IndoorunitPCBmodel
information error
●
(3)
●
(5)
◊
Manual auto switch error
●
(4)
●
(1)
◊
Room temp. sensor error
●
(4)
●
(2)
◊
IndoorunitHeatEx.Middletemp.
sensor error
●
(5)
●
(1)
◊
Indoor unit fan motor error
●
(5)
●
(3)
◊
Drainpumperror
●
(5)
●
(7)
◊
Dampererror
●
(5)
●
(8)
◊
Intake grille error
●
(5)
●
(15)
◊
Indoor unit error
●
(6)
●
(2)
◊
OutdoorunitmainPCBmodel
information error or
communication error
●
(6)
●
(3)
◊
Inverter error
●
(6)
●
(4)
◊
Activefiltererror,PFCcircuiterror
●
(6)
●
(5)
◊
Trip terminal L error
●
(6)
●
(10)
◊
DisplayPCBmicrocomputers
communication error
●
(7)
●
(1)
◊
Dischargetemp.sensorerror
●
(7)
●
(2)
◊
Compressor temp. sensor error
●
(7)
●
(3)
◊
OutdoorunitHeatEx.liquidtemp.
sensor error
●
(7)
●
(4)
◊
Outdoor temp. sensor error
●
(7)
●
(5)
◊
Suction Gas temp. sensor error
●
(7)
●
(6)
◊
2-way valve temp. sensor error•
3-way valve temp. sensor error•
●
(7)
●
(7)
◊
Heat sink temp. sensor error
●
(8)
●
(2)
◊
Sub-coolHeatEx.gasinlet•
temp. sensor error
Sub-coolHeatEx.gasoutlet•
temp. sensor error
●
(8)
●
(3)
◊
Liquid pipe temp. sensor error
●
(8)
●
(4)
◊
Current sensor error
●
(8)
●
(6)
◊
Dischargepressuresensorerror•
Suction pressure sensor error•
High pressure switch error•
●
(9)
●
(4)
◊
Trip detection
●
(9)
●
(5)
◊
Compressor rotor position
detection error
●
(9)
●
(7)
◊
Outdoor unit fan motor error
●
(9)
●
(9)
◊
4-way valve error
●
(10)
●
(1)
◊
Dischargetemp.error
●
(10)
●
(3)
◊
Compressor temp. error
●
(10)
●
(4)
◊
High pressure error
●
(10)
●
(5)
◊
Low pressure error
●
(13)
●
(2)
◊
Branchboxeserror
[FlexibleMulti]
Displaymode
●
:0.5sON/0.5sOFF
◊
:0.1sON/0.1sOFF
():Numberofflashing
[Troubleshooting with the indoor unit display]
OPERATIONindicator(green)
TIMERindicator(orange)
ECONOMYindicator(green)
[Troubleshooting with the Wired Remote Controller Display (Option)]
If an error occurs, the following display will be shown. (“Er” will appear in the set room
temperaturedisplay.)
Error code