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TROUBLESHOOTING
4) When connection status is determined
When the outdoor unit is determined as the master unit, the display shows as follows.
When the outdoor unit is determined as the dependent unit, the display shows as follows.
※ Determinate display proceeds to engine running hours display after 10 seconds.
Error during automatic address
The following error is detected during automatic address.
When the error is detected, the display shows as follows.
Alternately
displayed
Indoor unit Number of connected units
Outdoor unit Number of connected units
(If the number of connected units is 1, these is no dependent unit)
Address Dependent unit address No.
Error code Error contents
3-0 Indoor unit disconnected. Number of indoor units not matching.
4-1
Communication failure between outdoor units 2
(Automatic address setting failure under combined installation)
4-2
Communication failure between outdoor units 3
(Model settings do not agree under combined installation)
4-3
Communication failure between outdoor units 4
(Automatic address memory data failure under combined installation)
4-4
Communication failure between outdoor units 5
(Insufficient number of connected dependent units under combined installation)
4-5
Communication failure between outdoor units 6
(Automatic address setting time out under combined installation)
Error code
Error
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