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Error Detection - Fujitsu ASU9RLS2 Service Manual

Split type room air conditioner wall mounted type.
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ER R OR D ETEC TION
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.
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
( ) : Number of flashing
Indoor unit
OPERATION
TIMER
ECONOMY
lamp
lamp
lamp
(green)
(orange)
(green)
(1)
(1)
(2)
(1)
(1)
(5)
(2)
(2)
(3)
(2)
(2)
(3)
(5)
(3)
(1)
(4)
(2)
(4)
(1)
(5)
(15)
(5)
(2)
(6)
(3)
(6)
(4)
(6)
(5)
(6)
(10)
(6)
(1)
(7)
2011.12.27
Wired
Description
remote
control
Serial communication error
Wired remote control
communication error
Check run unfinished
Indoor unit capacity error
Combination error
Indoor unit PCB model
information error
Manual auto switch error
Room temp. sensor error
Indoor unit Heat Ex. Middle temp.
sensor error
Indoor unit fan motor 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
Display PCB microcomputers
communication error
Discharge temp. sensor error
Indoor unit display
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
Indoor unit
OPERATION
TIMER
ECONOMY
lamp
lamp
lamp
(green)
(orange)
(green)
(7)
(2)
(7)
(3)
(7)
(4)
(7)
(5)
(7)
(6)
(7)
(7)
(8)
(2)
(8)
(3)
(8)
(4)
(8)
(6)
(9)
(4)
(9)
(5)
(9)
(7)
(9)
(9)
(10)
(1)
(10)
(3)
(10)
(4)
(10)
(5)
11
Wired
Description
remote
control
Compressor temp. sensor error
Outdoor unit Heat Ex. liquid
temp. sensor error
Outdoor temp. sensor error
Suction Gas temp. sensor error
2-way valve temp. sensor error
3-way valve temp. sensor error
Heat sink temp. sensor error
Sub-cool Heat Ex. gas inlet
temp. sensor error
Sub-cool Heat Ex. gas outlet
temp. sensor error
Liquid pipe temp. sensor error
Current sensor error
Discharge pressure sensor error
Suction pressure sensor error
High pressure switch error
Trip detection
Compressor rotor position
detection error (permanent stop)
Outdoor unit fan motor error
4-way valve error
Discharge temp. error
Compressor temp. error
High pressure error
Low pressure error

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