Mitsubishi Electric PUHY-P168, Руководство по обслуживанию, Страница: 304 / 404

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[
IX
Troubleshooting ]
(4) Errors that are not limited to a particular system
Error Code Error definition and error detection method
6607
(Contin-
ued)
No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the
transmission. (eg. When the data is transmitted six times in a row with 30 seconds
interval, the error is detected on the transmission side.)
Note: The address/attribute appeared on the display on the remote control-
ler indicates the controller which did not provide the response (ACK).
Error
source ad-
dress
Error dis-
play
Detection
method
Cause Check method and remedy
Address
which
should not
be existed - - (1) Although the address of M-NET
remote controller has been
changed after the group is set
using M-NET remote controller,
the indoor unit is keeping the
memory of the previous ad-
dress.
The same symptom will appear
for the registration with SC.
(2) Although the address of LOSS-
NAY has been changed after the
interlock registration of LOSS-
NAY is made using M-NET re-
mote controller, the indoor unit is
keeping the memory of the pre-
vious address.
Delete unnecessary information of non-ex-
isting address which some indoor units
have.
Use either of the following two methods for
deletion.
1) Address deletion by M-NET remote
controller
Delete unnecessary address informa-
tion using the manual setting function of
M-NET remote controller. Refer to this
service handbook "4. [2]. Group set-
tings and interlock settings via the ME
remote controller 1. (3) Address dele-
tion".
2) Deletion of connection information of
the outdoor unit by the deleting switch
Note that this switch deletes all the
group information set via M-NET re-
mote controller and all the interlock
information of LOSSNAY and the in-
door unit.
ΠTurn off the power source of the out-
door unit, and wait for 5 minutes.
ΠTurn on the dip switch (SW2-2) on the
outdoor unit main board.
ΠTurn on the power source of the out-
door unit, and wait for 5 minutes.
ΠTurn off the power source of the out-
door unit, and wait for 5 minutes.
ΠTurn off the dip switch (SW2-2) on the
outdoor unit main board.
ΠTurn on the power source of the out-
door unit.