Fujitsu AUU7RLF Design & Technical Manual page 240

Error code
11.3
11.4
16.5
22.1
5U.1
62.1
62.3
62.8
63.1
65.3
71.1
72.1
73.2
73.3
74.1
75.1
76.1
76.2
77.1
84.1
86.1
94.1
95.1
97.3
98.3
99.1
9A.1
A1.1
A3.1
14-3. Error code
Serial communication error
Serial communication error during operation
Communication error between controller and outdoor unit
Indoor unit capacity error
Indoor unit error
PCB model information error
EEPROM access error
EEPROM data corruption error
Inverter error
IPM error (Trip terminal L error)
Discharge temp. sensor error
Compressor temp. sensor error
Heat exchanger middle temp. sensor error
Heat exchanger liquid temp. sensor error
Outdoor temp. sensor error
Suction gas temp. sensor error
Valve sensor error
Heat sink temp. sensor error
Current sensor 1 error (stoppage permanently)
Discharge pressure sensor error
Trip detection
Compressor motor control error (stoppage permanently)
Fan motor 1 error (Duty error)
Fan motor 2 error (Duty error)
4-way valve error
Coil 1 (expansion valve 1) error
Discharge temperature 1 error (stoppage permanently)
Compressor 1 temperature error
Error type
- 234 -
14. Check and test