Brand: FUJITSU
Category: Air Conditioners
Document Type: Manual
Language: EN
Manual for ASYG24LFCC
Uploaded: Nov. 21, 2025, 6:58 p.m.
Manual Publish Date: 2013-04-05
This manual provides detailed service information for the FUJITSU ASYG24LFCC Split Type Room Air Conditioner, Wall Mounted Type. It includes specifications, dimensions, refrigerant system diagrams, circuit diagrams for both indoor and outdoor units, error detection codes, and comprehensive parts lists for both indoor and outdoor units, along with accessories. The content is structured to guide service technicians through diagnosis, repair, and maintenance procedures.
Troubleshooting and error codes
| Indoor unit lamps | Wired remote control | Description | Indoor unit lamps | Wired remote control | Description | ||||
| OPERATION (green) | TIMER (orange) | ECONOMY (green) | OPERATION (green) | TIMER (orange) | ECONOMY (green) | ||||
| ● (1) | (1) | ○ | 11 | Serial communication error | ● (6) | (10) | ○ | 6A | Display PCB microcomputers communication error |
| ● (1) | (2) | ○ | 12 | Wired remote control communication error | ● (7) | (1) | ○ | 71 | Discharge temp. sensor error |
| ● (1) | (5) | ○ | 15 | Check run unfinished | ● (7) | (2) | ○ | 72 | Compressor temp. sensor error |
| ● (2) | (1) | ○ | 21 | Unit number or Refrigerant circuit address setting error [Simultaneous Multi] | ● (7) | (3) | ○ | 73 | Outdoor unit Heat Ex. liquid temp. sensor error |
| ● (2) | (2) | ○ | 22 | Indoor unit capacity error | ● (4) | ○ | ○ | 74 | Outdoor temp. sensor error |
| ● (2) | (3) | ○ | 23 | Combination error | ● (7) | (5) | ○ | 75 | Suction Gas temp. sensor error |
| ● (2) | (4) | ○ | 24 | Connection unit number error (indoor slave unit) [Simultaneous Multi] | ● (7) | (6) | ○ | 76 | ● 2-way valve temp. sensor error ○ 3-way valve temp. sensor error |
| ● (2) | (7) | ○ | 27 | Connection unit number error (indoor unit or branch unit) [Flexible Multi] | ● (7) | (7) | ○ | 77 | Heat sink temp. sensor error |
| ● (3) | (2) | ○ | 32 | Primary unit, secondary unit set-up error [Simultaneous Multi] | ● (8) | (2) | ○ | 82 | ● Sub-cool Heat Ex. gas inlet temp. sensor error ○ Sub-cool Heat Ex. gas outlet temp. sensor error |
| ● (3) | (5) | ○ | 35 | Indoor unit PCB model information error | ● (8) | (3) | ○ | 83 | Liquid pipe temp. sensor error |
| ● (4) | (1) | ○ | 41 | Inlet air temp. sensor error | ● (8) | (4) | ○ | 84 | Current sensor error |
| ● (4) | (2) | ○ | 42 | Indoor unit Heat Ex. Middle temp. sensor error | ● (8) | (6) | ○ | 86 | ● Discharge pressure sensor error ○ Suction pressure sensor error |
| ● (5) | (1) | ○ | 51 | Indoor unit fan motor error | ● (9) | (4) | ○ | 94 | Trip detection |
| ● (5) | (3) | ○ | 53 | Drain pump error | ● (9) | (5) | ○ | 95 | Compressor rotor position detection error (permanent stop) |
| ● (5) | (7) | ○ | 57 | Damper error | ● (9) | (7) | ○ | 97 | Outdoor unit fan motor error |
| ● (5) | (15) | SU | Indoor unit error | ● (9) | (9) | ○ | 99 | 4-way valve error | |
| ● (6) | (2) | ○ | 62 | Outdoor unit main PCB model information error or communication error | ● (10) | (1) | ○ | A1 | Discharge temp. error |
| ● (6) | (3) | ○ | 63 | Inverter error | ● (10) | (3) | ○ | A3 | Compressor temp. error |
| ● (6) | (4) | ○ | 64 | Active filter error, PFC circuit error | ● (10) | (4) | ○ | A4 | High pressure error |
| ● (6) | (5) | ○ | 65 | Trip terminal L error [Flexible Multi] | ● (10) | (5) | ○ | A5 | Low pressure error |
| (13) | (2) | ○ | 12 | Branch boxes error | |||||
| Pressure sensor error | |||||||||