Fujitsu Fault Codes:
Error Detail | Indoor LED Display Flashes | Wired RC | ||
Operation | Timer | Economy | ||
Serial communication error | 1 | 1 | Continuous | 11 |
Wired RC communication error | 1 | 2 | Continuous | 12 |
Network communication error | 1 | 4 | Continuous | 14 |
Check run unfinished | 1 | 5 | Continuous | 15 |
Transmission/Peripheral connect error | 1 | 6 | Continuous | 16 |
Refrigeration circuit address setting error | 2 | 1 | Continuous | 21 |
Indoor unit capacity error | 2 | 2 | Continuous | 22 |
Combination error | 2 | 3 | Continuous | 23 |
Connection unit number error | 2 | 4 | Continuous | 24 |
Address setting error | 2 | 6 | Continuous | 26 |
Master/Slave unit set-up error | 2 | 7 | Continuous | 27 |
Connection unit number error in WRC circuit | 2 | 9 | Continuous | 29 |
Power supply interruption error | 3 | 1 | Continuous | 31 |
Indoor PCB EPPROM error | 3 | 2 | Continuous | 32 |
Manual auto switch error | 3 | 5 | Continuous | 35 |
Indoor unit WRC communication error | 3 | 10 | Continuous | 3A |
Inlet air temp sensor error | 4 | 1 | Continuous | 41 |
Indoor Heat-Ex middle temp sensor error | 4 | 2 | Continuous | 42 |
Indoor unit fan motor error | 5 | 1 | Continuous | 51 |
Indoor EEV error | 5 | 2 | Continuous | 52 |
Drain pump error | 5 | 3 | Continuous | 53 |
Damper error | 5 | 7 | Continuous | 57 |
Intake grille error | 5 | 8 | Continuous | 58 |
Indoor unit error | 5 | 15 | Continuous | 5U |
Outdoor PCB/communication error | 6 | 2 | Continuous | 62 |
Inverter error | 6 | 3 | Continuous | 63 |
Active filter/PFC circuit error | 6 | 4 | Continuous | 64 |
Trip terminal ‘L’ error | 6 | 5 | Continuous | 65 |
Display PCB/communication error | 6 | 10 | Continuous | 6A |
OU Discharge temp sensor error | 7 | 1 | Continuous | 71 |
Compressor temp sensor error | 7 | 2 | Continuous | 72 |
OU Heat-Ex liquid temp sensor error | 7 | 3 | Continuous | 73 |
OU Ambient temp sensor error | 7 | 4 | Continuous | 74 |
OU Suction ref temp sensor error | 7 | 5 | Continuous | 75 |
2/3 way valve temp sensor error | 7 | 6 | Continuous | 76 |
OU Heat sink temp sensor error | 7 | 7 | Continuous | 77 |
Sub-cool inlet/outlet temp sensor error | 8 | 2 | Continuous | 82 |
OU Liquid pipe temp sensor error | 8 | 3 | Continuous | 83 |
OU current sensor error | 8 | 4 | Continuous | 84 |
HP/LP pressure sensor/switch error | 8 | 6 | Continuous | 86 |
OU Current trip detection | 9 | 4 | Continuous | 94 |
Compressor rotor location detection error | 9 | 5 | Continuous | 95 |
OU fan motor error | 9 | 7 | Continuous | 97 |
OU fan motor 2 error | 9 | 8 | Continuous | 98 |
4-way valve error | 9 | 9 | Continuous | 99 |
Coil (expansion valve) error | 9 | 10 | Continuous | 9A |
Outdoor unit error | 9 | 15 | Continuous | 9U |
OU Abnormal discharge temp error | 10 | 1 | Continuous | A1 |
Abnormal compressor temp error | 10 | 3 | Continuous | A3 |
High Pressure error | 10 | 4 | Continuous | A4 |
Low pressure error | 10 | 5 | Continuous | A5 |
VRF Branch box error | 13 | 1 | Continuous | J1 |
8-Way Multi branch box error | 13 | 2 | Continuous | J2 |
Accessories | PCB LED | PCB LED | WRC | |
VRF RB: Cable crossed OU/RB - IU/RB | on solid | on solid | - | - |
VRF RB: Coms/Main PCB error | on solid | Continuous | - | - |
WRC: Incompatible IU connected | - | - | - | C0:15 |
WRC: Indoor - WRC comms error | - | - | - | C0:12 |
