Daikin RXG35J2V1B User Manual

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Service

Manual

[Applied Models]

z Inverter Pair : Heat Pump

Inverter Pair

Wall Mounted Type J-Series

SiBE041012_A

Table of Contents

Table of Contents3
Introduction7
- Safety Cautions7
- Used Icons11
Part 1 List of Functions12
Functions13
Part 2 Specifications15
Specifications16
Part 3 Printed Circuit Board Connector Wiring Diagram21
Indoor Unit22
Outdoor Unit25
- Rxg25/35J2V1B, Rxg25/35K2V1B25
- Rxg50K2V1B27
Part 4 Function and Control29
Main Functions30
- Temperature Control30
- Frequency Principle30
- Operation Starting Control32
- Airflow Direction Control33
- Fan Speed Control for Indoor Unit34
- Program Dry Operation35
- Automatic Operation36
- Thermostat Control37
- NIGHT SET Mode38
- ECONO Operation39
- INTELLIGENT EYE Operation40
- Inverter POWERFUL Operation41
- Other Functions43
Function of Thermistor44
Control Specification45
- Mode Hierarchy45
- Frequency Control46
- Controls at Mode Changing / Start-Up48
- Compressor Protection Function49
- Discharge Pipe Temperature Control50
- Input Current Control51
- Freeze-Up Protection Control52
- Heating Peak-Cut Control52
- Outdoor Fan Control53
- Liquid Compression Protection Function53
- Defrost Control54
- Outdoor Electronic Expansion Valve Control55
- Pressure Equalizing Control56
- Malfunctions58
Part 5 Operation Manual59
System Configuration60
Operation Manual61
- Name of Parts61
- Remote Controller63
- AUTO · DRY · COOL · HEAT · FAN Operation65
- Operating Conditions66
- Adjusting the Airflow Direction and Rate67
- COMFORT AIRFLOW Operation69
- INTELLIGENT EYE Operation70
- POWERFUL Operation72
- OUTDOOR UNIT QUIET Operation73
- ECONO Operation74
- During Operation74
- OFF TIMER Operation75
- ON TIMER Operation76
- WEEKLY TIMER Operation77
Part 6 Service Diagnosis83
Troubleshooting with LED85
- Indoor Unit85
- Outdoor Unit85
Problem Symptoms and Measures86
Service Check Function87
Troubleshooting90
- Error Codes and Description90
- Indoor Unit PCB Abnormality91
- Freeze-Up Protection Control or Heating Peak-Cut Control93
- Fan Motor (DC Motor) or Related Abnormality95
- Thermistor or Related Abnormality (Indoor Unit)97
- Front Panel Open / Close Fault98
- Signal Transmission Error (between Indoor Unit and Outdoor Unit)99
- Unspecified Voltage (between Indoor Unit and Outdoor Unit)101
- Outdoor Unit PCB Abnormality102
- OL Activation (Compressor Overload)104
- Compressor Lock105
- DC Fan Lock106
- Input Overcurrent Detection107
- Four Way Valve Abnormality108
- Discharge Pipe Temperature Control110
- High Pressure Control in Cooling111
- Compressor System Sensor Abnormality112
- Position Sensor Abnormality114
- DC Voltage / Current Sensor Abnormality (25/35 Class)117
- CT or Related Abnormality (50 Class)118
- Thermistor or Related Abnormality (Outdoor Unit)120
- Electrical Box Temperature Rise122
- Radiation Fin Temperature Rise124
- Output Overcurrent Detection126
- Refrigerant Shortage128
- Low-Voltage Detection or Over-Voltage Detection131
- Signal Transmission Error on Outdoor Unit PCB (50 Class Only)133
Check134
- Thermistor Resistance Check134
- Fan Motor Connector Check135
- Power Supply Waveforms Check135
- Electronic Expansion Valve Coil Check136
- Four Way Valve Performance Check137
- Inverter Unit Refrigerant System Check137
- Inverter Checker" Check138
- Rotation Pulse Check on the Outdoor Unit PCB140
- Installation Condition Check141
- Discharge Pressure Check141
- Outdoor Fan System Check142
- Main Circuit Short Check142
- Capacitor Voltage Check143
- Power Module Check143
Part 7 Removal Procedure144
Indoor Unit145
- Removal of Air Filters / Front Panel145
- Removal of Horizontal Blades149
- Removal of Front Grille151
- Removal of Front Panel Mechanism ASSY154
- Removal of Display Lens ASSY156
- Removal of Reduction Motor / Limit Switch157
- Removal of Fan Guards / Electrical Box159
- Removal of Pcbs162
- Removal of Swing Motors168
- Removal of Indoor Heat Exchanger169
- Removal of Fan Rotor / Fan Motor172
- Removal of Vertical Blade Assys175
Outdoor Unit - 25/35 Class176
- Removal of Outer Panels / Fan Motor176
- Removal of Electrical Box185
- Removal of Pcbs188
- Removal of Reactor / Partition Plate196
- Removal of Sound Blankets198
- Removal of Four Way Valve200
- Removal of Compressor203
Outdoor Unit - 50 Class205
- Removal of Outer Panels205
- Removal of Outdoor Fan / Fan Motor209
- Removal of Electrical Box213
- Removal of Pcbs218
- Removal of Sound Blankets / Thermistors221
- Removal of Four Way Valve223
- Removal of Electronic Expansion Valve224
- Removal of Compressor225
Part 8 Trial Operation and Field Settings228
Pump down Operation229
Forced Cooling Operation230
Trial Operation232
Field Settings233
- When 2 Units Are Installed in 1 Room233
- Standby Electricity Saving234
- Jumper and Switch Settings234
Application of Silicon Grease to a Power Transistor and a Diode Bridge235
Part 9 Appendix236
Piping Diagrams237
- Indoor Unit237
- Outdoor Unit237
Wiring Diagrams239
- Indoor Unit239
- Outdoor Unit239

Other manuals for Daikin RXG35J2V1B

Service Manual Removal Procedure33 pages

Questions and Answers:

M
Michael CharlesAug 6, 2025
What to do if the multi-colored indicator lamp blinks on my Daikin RXG35J2V1B?
- C
  Chase MckinneyAug 6, 2025
  If the multi-colored indicator lamp on your Daikin Air Conditioner is blinking, it could be due to a protection device being activated in either the indoor or outdoor unit, or a thermistor malfunction. It could also indicate a signal transmission error between the indoor and outdoor units. In both cases, you should conduct the diagnostic procedure described in the following pages.
W
William LucasAug 20, 2025
What to do if a signal transmission error occurs between indoor and outdoor units of Daikin Heat Pump?
- T
  Timothy MitchellAug 20, 2025
  If you are experiencing a signal transmission error between the indoor and outdoor units of your Daikin Heat Pump, you should conduct the diagnostic procedure described in the following pages.

Daikin RXG35J2V1B Specifications

General

Brand	Daikin
Model	RXG35J2V1B
Category	Air Conditioner
Language	English

Summary

Introduction to the Service Manual

General Safety Precautions

Essential safety warnings and cautions for handling and repairing the equipment.

Product Specifications

Wiring Diagrams and Connector Layouts

Indoor Unit Wiring and Connectors

Diagrams and descriptions of connectors and components on the indoor unit PCB.

Outdoor Unit Wiring and Connectors

Function and Control Operations

Key Operational Functions

Service Diagnosis and Troubleshooting

LED Indicator Troubleshooting

Interprets LED indicators on indoor and outdoor units for error detection.

Common Issues and Solutions

Lists common operational problems and provides corresponding diagnostic measures.

Service Check Procedures

Detailed Troubleshooting Guide

Comprehensive guide to identifying and resolving error codes and system malfunctions.

Error Codes and Descriptions

Lists all error codes displayed by the system and their corresponding fault descriptions.

Indoor Unit PCB Malfunction

Troubleshooting steps for abnormalities related to the indoor unit's printed circuit board.

Outdoor Unit PCB Malfunction

Diagnosing and resolving abnormalities with the outdoor unit's printed circuit board.

Compressor Overload (OL Activation)

Troubleshooting steps for compressor overload (OL) conditions.

Compressor Lock Troubleshooting

Diagnosing and resolving compressor lock issues.

Refrigerant Shortage Diagnosis

Methods for detecting and addressing refrigerant shortages in the system.

Inverter Checker Usage

Disassembly and Removal Procedures

Indoor Unit Component Removal

Step-by-step guide for removing components from the indoor unit.

Removing Air Filters and Front Panel

Removing PCBs (25/35 Class)

Removing the Four Way Valve (25/35 Class)

Outdoor Unit (50 Class) Component Removal

Procedures for removing components from the 50 class outdoor unit.

Removing Outer Panels (50 Class)

Removing Electrical Box (50 Class)

Removing the Compressor (50 Class)

Trial Operation and Field Settings

Pump Down Procedure

Forced Cooling Operation Guide

Trial Operation Procedure

Appendix

Electrical Wiring Diagrams

Schematic diagrams showing the electrical connections for indoor and outdoor units.

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