Daikin RXA42B User Manual

Service manual
Split Stylish R32
FTXA20A(W)(S)(T)
FTXA20B(B)(S)(T)
FTXA25A(W)(S)(T)
FTXA25B(B)(S)(T)
FTXA35A(W)(S)(T)
FTXA35B(B)(S)(T)
FTXA42A(W)(S)(T)
FTXA42B(B)(S)(T)
FTXA50A(W)(S)(T)
FTXA50B(B)(S)(T)
RXA42A
RXA50A
RXA20A(9)
RXA25A(9)
RXA35A(9)
RXA42B
RXA50B

Daikin RXA42B Specifications

General

Cooling Capacity	4.2 kW
Refrigerant	R32
Outdoor Unit Noise Level	48 dB(A)
Type	Split System
Power Supply	220-240 V, 50 Hz

Summary

1 Troubleshooting

1.1 To display the error code on the user interface

Procedure to show error codes on the user interface.

1.2 To reset the error code via remote controller

How to reset error codes using the remote controller.

1.3 To reset the error code via outdoor unit

1.4 To perform a test run

1.5 Error based troubleshooting

Troubleshooting steps based on specific error codes.

1.6 Symptom based troubleshooting

Troubleshooting guide based on observed unit symptoms.

2 Components

2.1 4-way valve

Detailed information and checks for the 4-way valve component.

2.2 Compressor

Information and procedures related to the compressor.

2.3 Expansion valve

Detailed information on the expansion valve component.

2.5 High pressure switch

Information and procedures for the high pressure switch.

2.7 Indoor unit fan motor

2.8 Indoor unit main PCB

Information and procedures for the indoor unit main PCB.

2.9 Indoor unit power PCB

2.11 Inverter PCB

Information and procedures for the inverter PCB.

2.12 Main PCB

Information and procedures for the main PCB.

2.13 Outdoor unit fan motor

3 Third party components

3.2 Refrigerant circuit

Procedures for checking and servicing the refrigerant circuit.

4 Maintenance