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Error mode detected by remote controller or network adapter
: Flash, : Go on, : Go off
Wireless sensor
lamp display
Operation
Timer Ready
———
———
———
———
Wired remote
controller
Check code
No check code
is displayed.
(Remote
controller does
not operate.)
E01*2
E02
E09
L20
Central remote
controller
98
—
*3
Central remote
controller
99
—
*3
Central remote
controller
97
—
Central remote
controller
b7
Diagnostic function
Cause of operation
No communication with master indoor unit
• Remote controller cable is not correctly
connected.
• Power of indoor unit is not turned on.
• Automatic address cannot be completed.
No communication with indoor master unit
• Disconnection of inter-unit cable between
remote controller and master indoor unit
(Detected at remote controller side)
Signal sending error to indoor unit
(Detected at remote controller side)
Multiple master remote controllers are recognized.
(Detected at remote controller side)
Duplicated indoor central addresses on
communication of central control system (AI-NET)
(Detected by central controller side)
Multiple network adapters on remote controller
communication line
(Detected by central controller side)
Interruption of central control system (AI-NET)
communication circuit
(Detected by central controller side)
Indoor Gr sub unit error
(Detected by central controller side)
Status of air conditioner
Stop
Stop
(Automatic restart)
* When there is center, operation
continues.
Stop
(Automatic restart)
* When there is center, operation
continues.
Stop
(Sub unit continues operation.)
Stop
(Automatic restart)
Operation continues.
Operation continues.
(According to handy remote controller)
Continuation/stop
(Based on a case)
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
Judgment and measures
Remote controller power error, Defective indoor EEPROM
1. Check remote controller inter-unit cables.
2. Check remote controller.
3. Check indoor power cables.
4. Check indoor P.C. board.
5. Check indoor EEPROM. (including socket insertion)
: Phenomenon of automatic address repetition occurred.
Signal receiving of remote controller is defective.
1. Check remote controller inter-unit cables.
2. Check remote controller.
3. Check indoor power cables.
4. Check indoor P.C. board.
Signal sending of remote controller is defective.
1. Check sending circuit inside of remote controller.
: Replace remote controller.
1. Check there are multiple master units for 2 remote controllers
(including wireless).
: Master unit is one and others are sub units.
1. Check address setup of central control system network.
(Network adapter SW01)
2. Check network adapter P.C. board.
1. Check multiple network adapters.
2. Check inter-unit cable/miscabling of remote controller.
: Only one network adapter on remote controller communication line
1. Check communication line/miscabling. Check power of indoor unit.
2. Check communication. (XY terminals)
3. Check network adapter P.C. board.
4. Check central controller (such as central control remote controller, etc.).
Check the check code of corresponding unit by handy remote controller.
*2 Check code is not displayed by wired remote controller. (Usual operation of air conditioner is disabled.)
For wireless type models, E01 is notified by the display lamp.
*3 These errors are related to communication of remote controllers (A, B) and central system (AI-NET, X, Y), and [E01], [E02], [E03], [E09], or [E18] is displayed or no check code is displayed on the
remote controller according to the error contents.