Error Detection - Fujitsu ABYG18LVTB Service Manual

E RROR D E TEC 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
( ) : Number of flashing
2018.01.17
Indoor unit
OPERATION TIMER
lamp lamp
(green) (orange)
(1)
(1)
(1)
(2)
(2)
(2)
(2)
(2)
(3)
(3)
(4)
(4)
(5)
(5)
(5)
(5)
(6)
(6)
: 0.5s on / 0.5s off
(6)
: 0.1s on / 0.1s off
(6)
(6)
(7)
Wired
ECONOMY remote Description
lamp
control
(green)
Serial communication error
(1)
Wired remote control
(2)
communication error
Check run unfinished
(5)
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]
Master unit, slave unit set-up
(7)
error [Simultaneous Multi]
Indoor unit PCB model
(2)
information error
Manual auto switch error
(5)
Inlet air temp. sensor error
(1)
Indoor unit Heat Ex. Middle
(2)
temp. sensor error
Indoor unit fan motor error
(1)
Drain pump error
(3)
Damper error
(7)
Indoor unit error
(15)
Outdoor unit main PCB model
(2)
information error or
communication error
Inverter error
(3)
Active filter error, PFC circuit error
(4)
Trip terminal L error
(5)
Display PCB microcomputers
(10)
communication error
Discharge temp. sensor error
(1)
Indoor unit
Wired
OPERATION TIMER ECONOMY remote
lamp lamp lamp
control
(green) (orange) (green)
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)
•
(7) (6)
•
Heat sink temp. sensor error
(7) (7)
•
(8) (2)
•
Liquid pipe temp. sensor error
(8) (3)
Current sensor error
(8) (4)
•
(8) (6)
•
•
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]
Description
2-way valve temp. sensor error
3-way valve temp. sensor error
Sub-cool Heat Ex. gas inlet
temp. sensor error
Sub-cool Heat Ex. gas outlet
temp. sensor error
Discharge pressure sensor
error
Suction pressure sensor error
High pressure switch error
9