Toshiba MMK-AP0072H Service Manual page 59

Check code
[E06] / [04]
(Current code7 / AI-NET)
Sub-code: No. of indoor units which received signals normally
Is there no miscabling/
disconnection on communication line
betweenindoor and outdoor?
NO
Is connection of CN40 connector
on indoor P.C. board normal?
YES
Is connection of CN01 connector
on outdoor I/F P.C. board normal?
YES
Is power of indoor turned on?
YES
Did a power failure occur?
YES
Is there no noise, etc?
NO
Check indoor P.C. board.
Defect Replace
Check code name
Decreased number of indoor units
YES
NO
NO
NO
NO
YES
(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.
1. Communication lines (U1, U2) connection
error between indoor and outdoor
2. Connector connection error of communica-
tion for indoor P .C. board
3. Connector connection error of communica-
tion for outdoor I/F board
4. Power supply of indoor unit
(Is power turned on?)
Correct cabling of cable connector.
Check noise, etc, and eliminate it if any.
59
FILE NO. SVM-05052
Cause of operation
Correct communication line.
Turn on power of indoor unit.
Clear the check code.