Brand: FUJITSU
Category: Air Conditioners
Document Type: Manual
Language: EN
Manual for ASU30RLXB
Uploaded: Nov. 21, 2025, 6:40 p.m.
Manual Publish Date: 2014-10-29
Provides detailed information on the specifications, dimensions, refrigerant system, and electrical diagrams for the FUJITSU ASU30RLXB split-type room air conditioner. It includes parts lists for both indoor and outdoor units, error detection codes, and accessories. The manual guides technicians through the service and repair of the unit.
Troubleshooting and error codes
| General section | Detail section | OPERATION (Green) | TIMER (Orange) | ECONOMY (Green) | Wired remote control error code |
|---|---|---|---|---|---|
| Communication error | Serial communication error | ◇ | 11 | ||
| System error | Remote controller communication error | ◇ | 12 | ||
| Scan error | ◇ | 15 | |||
| Field setting error | Initial setting error (for simultaneous multi) | ◇ | 21 | ||
| Indoor unit capacity error | ◇ | 22 | |||
| Connection disabled (series error) | ◇ | 23 | |||
| Connection unit number error | ◇ | 24 | |||
| Master unit and slave unit setting error | ◇ | 27 | |||
| Indoor unit PCB, switch error | Indoor unit main PCB error | ◇ | 32 | ||
| Manual auto switch error | ◇ | 35 | |||
| Indoor unit sensor error | Indoor room thermistor error | ◇ | 41 | ||
| Indoor heat Ex. thermistor error | ◇ | 42 | |||
| Indoor unit actuator error | Indoor unit fan motor error | ◇ | 51 | ||
| Water drain error | ◇ | 53 | |||
| Damper error | ◇ | 57 | |||
| Indoor unit error | |||||
| Outdoor unit PCB error | Outdoor unit main PCB error | ◇ | 62 | ||
| Circuit parts error | Inverter PCB error | ◇ | 63 | ||
| Switch error | Active filter error, PFC circuit error | ◇ | 64 | ||
| IPM error | ◇ | 65 | |||
| Display panel error | ◇ | 6A | |||
| Outdoor unit sensor error | Discharge thermistor error | ◇ | 71 | ||
| Compressor thermistor error | ◇ | 72 | |||
| Outdoor unit heat Ex. thermistor error | ◇ | 73 | |||
| Outdoor thermistor error | ◇ | 74 | |||
| Suction gas thermistor error | ◇ | 75 | |||
| Operation valve thermistor error | ◇ | 76 | |||
| Heat sink thermistor error | ◇ | 77 | |||
| Outdoor unit sensor 2 error | Sub-cool heat Ex.gas thermistor error | ◇ | 82 | ||
| Liquid pipe thermistor error | ◇ | 83 | |||
| Current sensor error | ◇ | 84 | |||
| Pressure sensor error (Pressure sensor or switch error) | ◇ | 86 | |||
| Outdoor unit actuator error | Trip detection | ◇ | 94 | ||
| Compressor motor control error | ◇ | 95 | |||
| Outdoor unit fan motor 1 error | ◇ | 97 | |||
| 4-way valve error | ◇ | 99 | |||
| Refrigerant circuit error | Discharge temperature error | ◇ | A1 | ||
| Compressor temperature error | ◇ | A3 | |||
| Pressure error 1 | ◇ | A4 | |||
| Pressure error 2 | ◇ | A5 |