En-18
11. ERROR CODES
If you use a wired type remote controller, error codes will appear on the remote
controller display. If you use a wireless remote controller, the lamps on the IR receiver
unitwilloutputerrorcodesbywayofblinkingpatterns.Seethelampblinkingpatterns
and error codes in the table below. An error display is displayed only during operation.
Error display
Wired
remote
controller
Error code
Description
OPERATION
lamp
(green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
●
(1)
●
(1)
◊
Serialcommunicationerror
●
(1)
●
(2)
◊
Wired remote controller
communication error
●
(1)
●
(5)
◊
Checkrununnished
●
(2)
●
(1)
◊
UnitnumberorRefrigerantcircuit
address setting error
[SimultaneousMulti]
●
(2)
●
(2)
◊
Indoor unit capacity error
●
(2)
●
(3)
◊
Combinationerror
●
(2)
●
(4)
◊
Connectionunitnumber •
error(indoorslaveunit)
[SimultaneousMulti]
Connectionunitnumbererror•
(indoorunitorbranchunit)
[FlexibleMulti]
●
(2)
●
(7)
◊
Masterunit,slaveunitset-up
error[SimultaneousMulti]
●
(3)
●
(2)
◊
IndoorunitPCBmodel
information error
●
(3)
●
(5)
◊
Manualautoswitcherror
●
(4)
●
(1)
◊
Room temp. sensor error
●
(4)
●
(2)
◊
IndoorunitHeatEx.Middletemp.
sensor error
●
(5)
●
(1)
◊
Indoor unit fan motor error
●
(5)
●
(3)
◊
Drain pump error
●
(5)
●
(7)
◊
Damper error
●
(5)
●
(15)
◊
Indoor unit error
●
(6)
●
(2)
◊
OutdoorunitmainPCBmodel
information error or
communication error
●
(6)
●
(3)
◊
Inverter error
●
(6)
●
(4)
◊
Activeltererror,PFCcircuit
error
●
(6)
●
(5)
◊
TripterminalLerror
●
(6)
●
(10)
◊
DisplayPCBmicrocomputers
communication error
●
(7)
●
(1)
◊
Discharge temp. sensor error
●
(7)
●
(2)
◊
Compressortemp.sensorerror
●
(7)
●
(3)
◊
OutdoorunitHeatEx.liquid
temp. sensor error
●
(7)
●
(4)
◊
Outdoortemp.sensorerror
●
(7)
●
(5)
◊
SuctionGastemp.sensorerror
●
(7)
●
(6)
◊
2-way valve temp. sensor error•
3-way valve temp. sensor error•
●
(7)
●
(7)
◊
Heatsinktemp.sensorerror
●
(8)
●
(2)
◊
Sub-coolHeatEx.gasinlet•
temp. sensor error
Sub-coolHeatEx.gasoutlet•
temp. sensor error
●
(8)
●
(3)
◊
Liquidpipetemp.sensorerror
●
(8)
●
(4)
◊
Currentsensorerror
●
(8)
●
(6)
◊
Discharge pressure sensor •
error
Suctionpressuresensorerror•
Highpressureswitcherror•
●
(9)
●
(4)
◊
Trip detection
●
(9)
●
(5)
◊
Compressorrotorposition
detectionerror(permanentstop)
●
(9)
●
(7)
◊
Outdoorunitfanmotorerror
●
(9)
●
(9)
◊
4-wayvalveerror
●
(10)
●
(1)
◊
Discharge temp. error
●
(10)
●
(3)
◊
Compressortemp.error
●
(10)
●
(4)
◊
Highpressureerror
●
(10)
●
(5)
◊
Lowpressureerror
●
(13)
●
(2)
◊
Branch boxes error
[FlexibleMulti]
Display mode
●
:0.5sON/0.5sOFF
◊
:0.1sON/0.1sOFF
():Numberofashing
[Troubleshooting at the remote controller LCD]
This is possible only on the wired remote controller.
[Self-diagnosis]
Ifanerroroccurs,thefollowingdisplaywillbeshown.(“Er”willappearinthesetroom
temperaturedisplay.)
Error code
EX.Self-diagnosis
9374815173-04_IM.indb 18 9/21/2011 1:45:32 PM