Fujitsu AOTG34LFTC - Outdoor Unit Error Codes and Indicators

ERROR DETECTION
OUTDOOR UNIT
Indicator PCB
Display when an error occurs.
POWER
ERROR
PUMP
DOWN
LOW
NOISE
PEAK
CUT
MODE (L1) (L2) (L3) (L4) (L5) (L6)
Blink
(Hi speed)
Check that the “ERROR” LED blinks, then press the [Enter] button once.
For details, refer to the following table.
DESCRIPTION REMARK
LED display
POWER
MODE
ERROR
PUMP
DOWN
LOW NOISE PEAK CUT
(L1) (L2) (L3) (L4) (L5) (L6)
Serial communication error
Serial forward transmission error immediately after
operation
Blink
(2 times)
Blink
(1 time)
Blink
(1 time)
Serial forward transmission error during operation
Blink
(2 times)
Blink
(1 time)
Blink
(1 time)
Indoor unit capacity error Indoor unit capacity error
Blink
(2 times)
Blink
(2 times)
Bli
nk
(
2 times)
Indoor unit error Indoor unit error
Blink
(2 times)
Blink
(5 times)
Blink
(15 times)
Outdoor unit main PCB error Outdoor unit PCB model information error
Blink
(2 times)
Blink
(6 times)
Blink
(2 times)
Inverter PCB error Inverter error
Blink
(2 times)
Blink
(6 times)
Blink
(3 times)
IPM error Trip terminal L error
Blink
(2 times)
Blink
(6 times)
Blink
(5 times)
Discharge temp. sensor error Discharge temp. sensor 1 error
B
link
(2 times)
Blink
(7 times)
Blink
(1 time)
Compressor temp. sensor error Compressor temp. sensor 1 error
Blink
(2 times)
Blink
(7 times)
Blink
(2 times)
Outdoor unit Heat Ex. sensor error
Heat Ex. centre temp. sensor error
Blink
(2 times)
Blink
(7 times)
Blink
(3 times)
Outdoor unit Heat Ex. liquid temp. sensor error
Blink
(2 times)
Blink
(7 times)
Blink
(3 times)
Outdoor temp. sensor error Outdoor temp. sensor error
B
link
(2 times)
Blink
(7 times)
Blink
(4 times)
Heat sink temp. sensor error Heat sink temp. sensor error
Blink
(2 times)
Blink
(7 times)
Blink
(7 times)
Current sensor error Current sensor 1 error (stoppage permanently)
Blink
(2 times)
Blink
(8 times)
Blink
(4 times)
Pressure sensor error
High pressure switch 1 error
Blink
(2 times)
Blink
(8 times)
Blink
(6 times)
Pressure sensor error
Blink
(2 times)
B
link
(8 times)
Blink
(6 times)
Trip detection Trip detection
Blink
(2 times)
Blink
(9 times)
Blink
(4 times)
Compressor motor control error Rotor position detection error (stoppage permanently)
Blink
(2 times)
Blink
(9 times)
Blink
(5 times)
Outdoor unit fan motor 1 error Duty abnormal
Blink
(2 times)
Blink
(9 times)
Blink
(7 times)
Outdoor unit fan motor 2 error Duty abnormal
Blink
(2 times)
Blink
(9 times)
B
link
(8 times)
4-way valve error 4-way valve error
Blink
(2 times)
Blink
(9 times)
Blink
(9 times)
Discharge temp. 1 error Discharge temp. 1 error
Blink
(2 times)
Blink
(10 times)
Blink
(1 time)
Compressor temp. error Compressor 1 temp. error
Blink
(2 times)
Blink
(10 times)
Blink
(3 times)
Pressure error 2 Low pressure error
Blink
(2 times)
Blink
(10 times)
Blink
(5 times)
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
O
n
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On On
On On On
On
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
OffOffOffOffOffOff
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
2011.07.11 16
LEDs
Buttons