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10-2. Check Code List
Error mode detected by indoor and outdoor units
¥
: Flash,
¡
: Go on,
l
: Go off
Wireless sensor
lamp display
Operation
Timer Ready
¥
ll
ll
¥
¥
ll
¥
ll
¥
ll
¥¥
l
¥¥
l
¥¥¡
¥¥¡
¥¥¡
¥¥
l
¥¥
l
¥
ll
l
¥
l
l
¥
l
¥
l
¥
¥
l
¥
¥
l
¥
Wired remote
controller
Check code
E03
E04
E08
E10
E18
F01
F02
F04
F06
F08
F10
F29
H01
H02
H03
L03
L07
L08
Diagnostic function
Cause of operation
No communication from remote controller (including wireless)
and communication adapters
The serial signal is not output from outdoor unit to indoor unit.
• Miscabling of inter-unit cables
• Defective serial sensing circuit on outdoor P.C. board
• Defective serial receiving circuit on indoor P.C. board
Duplicated indoor unit addresses
Communication error between indoor MCU
• Communication error between fan driving MCU and main
MCU
Regular communication error between master and sub indoor
units or between main and sub indoor units
Coming-off, disconnection or short of indoor heat exchanger
sensor (TCJ)
Coming-off, disconnection or short of indoor heat exchanger
sensor (TC)
Coming-off, disconnection or short of outdoor temperature
sensor (TD)
Coming-off, disconnection or short of outdoor temperature
sensor (TE/TS)
Coming-off, disconnection or short of outdoor temperature
sensor (TO)
Coming-off, disconnection or short of indoor heat exchanger
sensor (TA)
Indoor EEPROM error
• EEPROM access error
Breakdown of compressor
• Displayed when error is detected
Compressor does not rotate.
• Over-current protective circuit operates after specified time
passed when compressor had been activated.
Current detection circuit error
• Current value at AC side is high even during compressor-OFF.
• Phase of power supply is missed.
Duplicated indoor master units
There is group line in individual indoor units.
Unsetting of indoor group address
Status of air
conditioner
Stop
(Automatic reset)
S top
(Automatic reset)
Stop
Stop
(Automatic reset)
Stop
(Automatic reset)
Stop
(Automatic reset)
Stop
(Automatic reset)
Stop
Stop
Operation
continues.
Stop
(Automatic reset)
Stop
(Automatic reset)
Stop
Stop
Stop
Stop
Stop
Stop
Condition
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Judgment and measures
1. Check cables of remote controller and communication adapters.
• Handy remote controller LCD display OFF (Disconnection)
• Central remote controller [97] check code
1. Outdoor unit does not completely operate.
• Inter-unit cable check, correction of miscabling, case thermo operation
• Outdoor P.C. board check, P.C. board cables check
2. In normal operation
P.C. board (Indoor receiving/Outdoor sending) check
1. Check whether there is modification of remote controller connection (Group/
Individual) or not after power has been turned on (finish of group configuration/
address check).
* If group configuration and address are not normal when the power has been turned
on, the mode automatically shifts to address setup mode. (Resetting of address)
1. Check cables of remote controller.
2. Check power cables of indoor unit.
3. Check indoor P.C. board.
1. Check cables of remote controller.
2. Check indoor power cable.
3. Check indoor P.C. board.
1. Check indoor heat exchanger temperature sensor (TCJ).
2. Check indoor P.C. board.
1. Check indoor heat exchanger temperature sensor (TC).
2. Check indoor P.C. board.
1. Check outdoor temperature sensor (TD).
2. Check outdoor CDB P.C. board.
1. Check outdoor temperature sensor (TE/TS).
2. Check outdoor CDB P.C. board.
1. Check outdoor temperature sensor (TO).
2. Check outdoor CDB P.C. board.
1. Check indoor heat exchanger temperature sensor (TA).
2. Check indoor P.C. board.
1. Check indoor EEPROM. (including socket insertion)
2. Check indoor P.C. board.
1. Check power voltage. AC200V ±20V
2. Overload operation of refrigerating cycle
3. Check current detection circuit at AC side.
1. Trouble of compressor (Compressor lock, etc.) : Replace compressor.
2. Defective cabling of compressor (Phase missing)
3. Phase-missing operation of power supply (3-phase model)
1. Compressor immediately stops even if restarted. : Check IPDU.
2. Phase-missing operation of power supply
Check 3-phase power voltage and cables.
1. Check whether there is modification of remote controller connection (Group/
Individual) or not after power has been turned on (finish of group configuration/
address check).
* If group configuration and address are not normal when the power has been turned
on, the mode automatically shifts to address setup mode. (Resetting of address)