Error Detection - Fujitsu ARYG24LMLA Service Manual

ER R OR D ETEC TION
INDOOR UNIT
and WIRED REMOTE CONTROL
If you use a wireless remote control, the lamp
on the photo detector unit will output error codes
by way of blinking patterns.
If you use a wired type remote control, 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 running.
This is possible only on a wired remote control.
If an error occurs, the following display will be shown.
("Er" will appear in the set room temperature display.)
Error code
EX. Self-diagnosis
: 0.5s on / 0.5s off
: 0.1s on / 0.1s off
( ) : Number of flashing
2013.03.26
Indoor unit lamps
Wired
OPERATION TIMER ECONOMY remote
control
(green) (orange) (green)
(1) (1)
(1) (2)
(5)
(1)
(2) (1)
(2) (2)
(2) (3)
(2) (4)
(2)
(7)
(3)
(1)
(3) (2)
(3) (5)
(4) (1)
(4) (2)
(5)
(1)
(5)
(3)
(5) (7)
(5) (15)
(6)
(2)
(6) (3)
(6)
(4)
(6) (5)
Description OPERATION
(green)
Serial communication error
Wired remote control communication error
Check run unfinished
Unit number or Refrigerant circuit
address setting error
[Simultaneous Multi]
Indoor unit capacity error
Combination error
• Connection unit number error
(indoor slave unit)
[Simultaneous Multi]
• Connection unit number error
(indoor unit or branch unit)
[Flexible Multi]
Master unit, slave unit set-up
error [Simultaneous Multi]
Power supply interruption error
Indoor unit PCB model information error
Manual auto switch error
Inlet air temp. sensor error
Indoor unit Heat Ex. Middle temp.
sensor error
Indoor unit fan motor error
Drain pump error
Damper error
Indoor unit error
Outdoor unit main PCB model
information error or
communication error
Inverter error
Active filter error, PFC circuit error
Trip terminal L error
10
Indoor unit lamps
Wired
TIMER ECONOMY remote Description
control
(orange) (green)
Display PCB microcomputers
(6)
(10)
communication error
Discharge temp. sensor error
(7)
(1)
Compressor temp. sensor error
(7) (2)
Outdoor unit Heat Ex. liquid
(7) (3)
temp. 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 sensor
• Suction pressure sensor error
(8) (6)
• High pressure switch error
Trip detection
(9) (4)
Compressor rotor position
(9) (5)
detection error (permanent stop)
Outdoor unit fan motor error
(9) (7)
4-way valve error
(9) (9)
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]