77
Check code
[E06] / [04]
(Current code7 / AI-NET)
Check code name
Decreased number
of indoor units
Cause of operation
1. Communication lines (U1, U2) connection
error between indoor and outdoor
2. Connector connection error of communication
for indoor P.C. board
3. Connector connection error of communication
for outdoor I/F board
4. Power supply of indoor unit
(Is power turned on?)
Sub-code:
No. of indoor units which received signals normally
(NOTE)
1. When signal is not sent for a certain period from the indoor unit
which has used to send signals normally, [E06] is displayed.
Is power of indoor turned on?
Did a power failure occur?
Is there no noise, etc?
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
Is there no miscabling/
disconnection on communication line
betweenindoor and outdoor?
Is connection of CN40 connector
on indoor P.C. board normal?
Is connection of CN01 connector
on outdoor I/F P.C. board normal?
Check indoor P.C. board.
Defect
→
Replace
Check noise, etc, and eliminate it if any.
Clear the check code.
Turn on power of indoor unit.
Correct cabling of cable connector.
Correct communication line.
