Trouble Shooting With Error Code (Outdoor Unit); Initial Setting Error; Check The Power Supply - Fujitsu Airstage V-II Service Manual

4-3-2 Trouble Shooring With Error Code (OUTDOOR UNIT)
Trouble shooting 13
OUTDOOR UNIT Error Method:

Initial Setting Error

Detective Actuators:
Outdoor unit main PCB
Forecast of Cause :
1. Power supply defective 2. Outdoor unit address/number of connected slave units setting mistake
3. The number setting mistake of outdoor unit
4. Connection of communication line between outdoor units defective 5. Main PCB defective
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
Outdoor unit address
Master
Slave 1
Slave 2
Check the number setting of slave unit
Connected the number
(Slave units)
0 unit
1 unit
2 units
OK
Check Point 3 : Check the number setting of outdoor units
Check the number setting of outdoor units
Number of outdoor unit
1 unit
2 units
3 units
OK
Check Point 4 : Check the connection of communication
line betweem outdoor units
Drop the power and perform the check.
Connection and open check of communication lines between outdoor units
Indicate or Display:
Outdoor Unit : - - - -
Indoor Unit
Error Code
Detective details:
Master unit: When the power is turned on, the number of connected slave units Master unit:
Slave unit: Slave unit: When the power is turned on, not even one master unit
SET 3-1 SET 3-2
OFF OFF
ON
OFF
ON OFF
SET 3-3 SET 3-4
OFF OFF
OFF ON
ON OFF
DIP-SW DIP-SW
SET5-1 SET5-2
OFF OFF
OFF ON
ON OFF
: No Display
: No Display
set at the master unit and the number of slave units received by
communication do not match.
communication data can be received.
Check Point 5 : Replace Main PCB
OK
Change Main PCB and set up the original address.
(Refer to 06-03 page Main PCB removal.)
04-21