Fujitsu ARXK24GCLH User Manual

SERVICE MANUAL

Fujitsu ARXK24GCLH Specifications

General

Brand	Fujitsu
Model	ARXK24GCLH
Category	Air Conditioner
Language	English

Summary

1. TEST RUN

1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS

Details the procedures and precautions for executing test runs.

1-2 TEST RUN METHOD

Outlines the methods and steps for conducting test runs.

2. OUTDOOR UNIT OPERATION CONTROL

2-2 COMPRESSOR OPERATION

Explains the operation and control of the compressor.

2-3 FAN CONTROL

Details the control mechanisms for the outdoor unit fan.

2-4 EXPANSION VALVE CONTROL

2-6 PROTECTIVE FUNCTION

Lists and explains protective functions and their operating conditions.

3. INDOOR UNIT OPERATION

3-1 FAN CONTROL

3-2 MASTER CONTROL

Explains master control functions including operation mode and priority.

3-4 ELECTRONIC EXPANSION VALVE CONTROL

4. TROUBLE SHOOTING

4-2 ABNORMAL OPERATION

Covers troubleshooting for abnormal operations and error indications.

4-2-1 Indoor Unit Display

Troubleshooting for indoor unit error indications and flashing patterns.

4-2-2 Outdoor Unit Display

Troubleshooting for outdoor unit error indications, LED patterns, and annunciation.

4-2-3 Error Code List for Outdoor Unit

List of error codes for outdoor units and corresponding troubleshooting steps.

4-2-4 Remote Controller Display

Error displays on various remote controller types and troubleshooting.

4-2-5 Error Code List for Simple and Wired Remote Controller

Error codes and troubleshooting for simple and wired remote controllers.

4-2-6 Error Code List for Group Remote Controller

Error codes and troubleshooting for group remote controllers.

4-2-7 Trouble shooting - No Error code -

4-2-8 Error Code List for External Switch Controller

Error codes and troubleshooting for external switch controllers.

4-2-9 Error Code List for Signal Amplifier

Error codes and troubleshooting for signal amplifiers.

4-2-10 Error Code List for Network Convertor

Error codes and troubleshooting for network convertors.

4-2-11 Error Code List for Wireless LAN Adaptor

Error codes and troubleshooting for wireless LAN adapters.

4-2-12 TROUBLE SHOOTING WITH ERROR CODE

Detailed troubleshooting for specific error codes and symptoms.

4-3 TROUBLE SHOOTING

General troubleshooting procedures for various system issues.

4-3-1 Trouble Shooting With Error Code (Indoor unit)

Troubleshooting steps for indoor unit errors with specific error codes.

4-3-2 Trouble Shooting With Error Code (Outdoor unit)

Troubleshooting steps for outdoor unit errors with specific error codes.

4-3-3 Trouble Shooting With No Error Cod.e

6. DISASSEMBLY PROCESS

5. INVERTER PCB, FILTER PCB, DIODE BRIDGE and POWER PCB removal

5-2. INVERTER PCB removal

6. FAN DRIVER PCB and INVERTER CT PCB removal

7. PRESSURE SENSOR, SOLENOID COIL removal

10. FAN MOTOR removal

15. COMPRESSOR removal

Detailed procedure for removing the compressor, including precautions.

16. Precautions for exchange of refrigerant-cycle-parts