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TROUBLESHOOTING
During automatic address
During automatic address, the system displays the progress as follows.
※ Error display by [UP] or [DOWN] switch is possible as "■ Normal display".
1) During connection check of the indoor unit
※ When connection check of the indoor unit is finished, the system proceeds to "2) Connection check of
the outdoor unit" automatically.
2) During connection check of the outdoor unit
※ When connection check of the outdoor unit is finished, the system proceeds to the following status.
When the address number is memorized, the system proceeds to "4) When connection status is deter-
mined" automatically.
When the address number is not memorized, the system proceeds to "3) When connection check by a
service person is required" automatically.
3) When connection check by a service person is required
When an outdoor unit has indoor units connected to itself, it can become the master unit, and displays as
follows.
When an outdoor unit has no indoor units connected to itself, it will be regarded as a dependent unit, and
displays as follows.
※ In this case, when [SET] switch of the master unit is pressed for 2 seconds, both master and dependent
units proceed to "4) When connection status is determined".
(Be sure to confirm connection status before pressing [SET] switch.)
During automatic address
Elapsed time from automatic address start (by 0.1 minutes)
P: Master unit, c: Dependent unit, － : Not determined
(Flashes when the data is not memorized)
0: Checking the connection of the indoor unit
1: Checking the connection of the outdoor unit
2: Checking the connection by a service person
3: Display of connection status determination
Alternately
displayed
Indoor unit
Number of connected units
(If connected number is 1, these is no dependent unit)
Number of connected units
Outdoor unit
Dependent unit address No.
Address
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