Error Detection - Fujitsu ASU9RLS3 Service Manual

E RR OR DETE CTIO N
INDOOR UNIT
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 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 operation.
OPERATION indicator lamp (green)
TIMER indicator lamp (orange)
ECONOMY indicator lamp (green)
Wired remote control display (Option)
If an error occurs, the following display will be shown.
("Er" will appear in the set room temperature display.)
Error code
2015.01.06
Indoor unit lamps
Wired
Description
remote
OPERATION TIMER ECONOMY
control
(green) (orange) (green)
Serial communication error
(1)
(1)
Wired remote control
(1) (2)
communication error
Check run unfinished
(1) (5)
Unit number or Refrigerant circuit
(1)
(2) address setting error
[Simultaneous Multi]
Indoor unit capacity error
(2)
(2)
Combination error
(2) (3)
•Connection unit number error
(indoor unit)
[Simultaneous Multi]
(4)
(2)
•Connection unit number error
(indoor unit orbranch unit)
[Flexible Multi]
Primary unit, secondary unit set-up
(7)
(2)
error [Simultaneous Multi]
Indoor unit PCB model
(2)
(3)
information error
Manual auto switch error
(3) (5)
Room temp. sensor error
(4) (1)
Indoor unit Heat Ex. Middle temp.
(2)
(4)
sensor error
Indoor unit fan motor error
(1)
(5)
Drain pump error
(3)
(5)
Damper error
(7)
(5)
Intake grill error
(8)
(5)
Indoor unit error
(15)
(5)
Outdoor unit main PCB model
(6) (2)
information error or
communication error
Inverter error
(6) (3)
Active filter error,
(6) (4)
PFC circuit error
Trip terminal L error
(5)
(6)
7
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
( ) : Number of flashing
Indoor unit lamps
Wired
Description
remote
OPERATION TIMER ECONOMY
control
(green) (orange) (green)
Display PCB microcomputers
(10)
(6)
communication error
Discharge temp. sensor error
(7) (1)
Compressor temp. sensor error
(2)
(7)
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)
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