Trouble shooting 17
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
Initial Setting Error
Outdoor unit main PCB
Check Point 1 : Check the power supply
Main power ON/OFF state check
Power cable connection, open check
OK
Check Point 2 : Chech the outdoor unit address/number of
connected slave units setting
Setting check of outdoor unit address of each outdoor unit
Check the number setting of slave unit
Outdoor unit address
SET 3-1 SET 3-2
Master
Slave 1
Slave 2
OFF
ON
OFF
OFF
ON
Connected the number
0 unit
OFF
ON
OFF
OFF
OFF
ON
OK
Check Point 3 : Check the number setting of outdoor units
Check Point 4 : Check the connection of communication
line betweem outdoor units
Connection and open check of communication lines between outdoor units
Drop the power and perform the check.
OK
Check Point 5 : Replace Main PCB
Change Main PCB and set up the original address.
(Refer to 06-03 page Main PCB removal.)
4-3-2 Trouble Shooring With Error Code (OUTDOOR UNIT)
Master unit: Master unit: When the power is turned on, the number of connected slave units
set at the master unit and the number of slave units received by
communication do not match.
Slave unit: Slave unit: When the power is turned on, not even one master unit
communication data can be received.
1. Power supply defective 2. Outdoor unit address/number of connected slave units setting mistake
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