Fujitsu ASYG07KMTA Service Manual page 13

E RR O R D ETE C TION
If you use a wireless remote controller, the lamp on the photo
detector unit will output error codes by way of blinking patterns.
If you use a wired remote controller, error codes will appear
on the remote control display.
See the lamp blinking patterns and error codes in the table.
An error display is displayed only during operation.
Troubleshooting with the indoor unit display
OPERATION indicator lamp (green)
TIMER indicator lamp (orange)
ECONOMY indicator lamp (green)
2018.03.06
Error display
OPERATION
lamp
(green) (orange)
●
(1)
●
(1)
●
(1)
●
(1)
●
(1)
●
(2)
●
(2)
●
(2)
●
(2)
●
(2)
●
(2)
●
(2)
●
(3)
●
(3)
●
(3)
●
(3)
●
(3)
●
(3)
●
(4)
●
(4)
●
(4)
●
(5)
●
(5)
●
(5)
●
(5)
●
(5)
●
(5)
●
Display mode : 0.5s ON / 0.5s OFF
●
(5)
◊
: 0.1s ON / 0.1s OFF
( ) : Number of flashing
●
(5)
TIMER ECONOMY
Error code Description
lamp lamp
(green)
Serial communication error
●
◊
(1)
• Wired remote controller
communication error
●
◊
(2)
• Server room control
communication error
Check run unfinished
●
◊
(5)
Automatic airflow adjustment error
Peripheral unit transmission PCB
●
◊
(6)
connection error
External communication error
●
◊
(8)
Unit number or Refrigerant circuit
●
◊
(1) address setting error
[Simultaneous Multi]
Indoor unit capacity error
●
(2) ◊
Combination error
●
(3) ◊
• Connection unit number error
(indoor slave unit)
[Simultaneous Multi]
●
◊
(4)
• Connection unit number error
(indoor unit or branch unit)
[Flexible Multi]
Indoor unit address setting error
●
(6) ◊
Primary unit, secondary unit setup error
●
◊
(7)
[Simultaneous Multi]
● Connection unit number error in
◊
(9)
wired remote controller system
Power supply interruption error
●
(1)
◊
Indoor unit PCB model
●
◊
(2)
information error
Indoor unit motor electricity
●
◊
(3)
consumption detection error
Manual auto switch error
●
◊
(5)
Indoor unit power supply error for
●
◊
(9)
fan motor
Indoor unit communication circuit
●
◊
(10)
(wired remote controller) error
Room temp. sensor error
●
◊
(1)
Indoor unit heat ex. middle temp.
●
◊
(2)
sensor error
Human sensor error
●
◊
(4)
Indoor unit fan motor error
●
◊
(1)
Drain pump error
●
◊
(3)
Electric air cleaner reverse VDD
●
(4) ◊
error
Filter set error
●
(5) ◊
Damper error
●
◊
(7)
Intake grille error
●
◊
(8)
Indoor unit fan motor 2 error
●
◊
(9)
(Left side fan)
Indoor unit fan motor 3 error
●
◊
(10)
(Right side fan)
Error display
OPERATION TIMER ECONOMY
Error code
lamp lamp lamp
(green) (orange) (green)
Indoor unit error
● ●
◊
(5) (15)
Outdoor unit reverse/missing
● ●
◊
(6) (1)
phase and wiring error
Outdoor unit main PCB model
● ●
◊
(6) (2) information error or
communication error
Inverter error
● ●
◊
(6) (3)
Active filter error, PFC circuit error
● ●
◊
(6) (4)
Trip terminal L error
● ●
◊
(6) (5)
Outdoor unit rush current limiting
● ●
◊
(6) (8)
resister temp. rise error
Display PCB microcomputers
● ●
(6) (10) ◊
communication error
Discharge temp. sensor error
● ●
◊
(7) (1)
Compressor temp. sensor error
● ●
◊
(7) (2)
Outdoor unit Heat Ex. liquid temp.
● ●
◊
(7) (3)
sensor error
Outdoor temp. sensor error
● ●
◊
(7) (4)
Suction Gas temp. sensor error
● ●
◊
(7) (5)
• 2-way valve temp. sensor error
● ●
◊
(7) (6)
• 3-way valve temp. sensor error
Heat sink temp. sensor error
● ●
◊
(7) (7)
• Sub-cool Heat Ex. gas inlet
temp. sensor error
● ●
◊
(8) (2)
• Sub-cool Heat Ex. gas outlet
temp. sensor error
Liquid pipe temp. sensor error
● ●
◊
(8) (3)
Current sensor error
● ●
◊
(8) (4)
• Discharge pressure sensor error
● ●
◊
(8) (6) • Suction pressure sensor error
• High pressure switch error
Trip detection
● ●
(9) (4) ◊
Compressor rotor position
● ●
◊
(9) (5)
detection error (permanent stop)
Outdoor unit fan motor 1 error
● ●
◊
(9) (7)
Outdoor unit fan motor 2 error
● ●
◊
(9) (8)
4-way valve error
● ●
◊
(9) (9)
Coil (expansion valve) error
● ●
◊
(9) (10)
Discharge temp. error
● ●
◊
(10) (1)
Compressor temp. error
● ●
◊
(10) (3)
High pressure error
● ●
(10) (4) ◊
Low pressure error
● ●
(10) (5) ◊
Branch boxes error
● ●
◊
(13) (2)
[Flexible Multi]
Description
12