Fujitsu air mini split error codes

Fujitsu ASU09RL2 mini split error codes

Error ContentsIndoor Unit Display  Trouble shooting
Operation (Green)Timer (Orange)Economy (Green)
Serial communication error1 times1 timesContinuous1
Indoor unit PCB model information error3 times2 timesContinuous2
Manual auto switch error3 times5 timesContinuous3
Room temp, sensor error4 times1 timesContinuous4
Indoor unit Heat Ex. middle temp, sensor error4 times2 timesContinuous5
Indoor unit fan motor error5 times1 timesContinuous6
Outdoor unit main PCB model information error or communication error6 times2 timesContinuous7
PFC circuit error6 times4 timesContinuous8
Trip terminal L error6 times5 timesContinuous9
Discharge temp, sensor error7 times1 timesContinuous10
Outdoor unit Heat Ex. liquid temp, sensor error7 times3 timesContinuous11
Outdoor temp, sensor error7 times4 timesContinuous12
Current sensor error8 times4 timesContinuous13
Trip detection9 times4 timesContinuous14
Compressor rotor position detection error9 times5 timesContinuous15
Outdoor unit fan motor error9 times7 timesContinuous16
4-way valve error9 times9 timesContinuous17
Discharge temp, error10 times1 timesContinuous18

Fujitsu R410A mini split error codes

Error codeError contents
0Communication error (indoor unit —— remote controller)
1Communication error (indoor unit —— outdoor unit)
2Room temperature sensor open
3Room temperature sensor short-circuited
4Indoor heat exchanger temperature sensor open
5Indoor heat exchanger temperature sensor short- circuited
6Outdoor heat exchanger temperature sensor
8Power source connection error
9Float switch operated
0AOutdoor temperature sensor
0cDischarge pipe temperature sensor
11Model abnormal
12Indoor fan abnormal
13Outdoor signal abnormal
14Excessive outdoor pressure (permanent stop)
15Compressor temperature sensor
16Pressure switch error
17IPM error
18CT error
19Active filter module (AFM) error
1ACompressor does not operate
1bOutdoor unit fan error
1cCommunication error (inverter— multi controller)
1d2 way valve sensor error
1EExpansion valve error
1FConnection indoor unit error

Error codes and troubleshooting