Daikin FTXA20BS 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 FTXA20BS Specifications

General

Brand	Daikin
Model	FTXA20BS
Category	Air Conditioner
Language	English

Summary

Disclaimer

Version Log

1 Troubleshooting

1.1-1.4 Basic Troubleshooting Procedures

Covers displaying/resetting error codes and performing unit test runs.

1.5 Error Based Troubleshooting

Troubleshooting specific error codes (A1-00, A5-00, etc.) with detailed steps.

1.6 Symptom Based Troubleshooting

Troubleshooting based on observed symptoms like no operation or abnormal noise.

2 Components

2.1-2.3 Refrigerant Circuit Components

Procedures for checking 4-way valve, compressor, and expansion valve.

2.4-2.20 Other Unit Components

Checks for motors, sensors, PCBs, thermistors, Wi-Fi modules, and more.

3 Third Party Components

3.1 Electrical Circuit Checks

Procedures for checking power supply, wiring, and circuit continuity.

3.2 Refrigerant Circuit Checks

Diagnosing refrigerant circuit issues like clogging, charge, and leaks.

3.3 External Factors

Checking external factors like outdoor temperature and airflow obstructions.

4 Maintenance

4.1-4.4 Cleaning Procedures

Instructions for cleaning heat exchangers, drain pans, and air filters.

5 Technical Data

5.1-5.4 Unit Diagrams and Settings

Covers setting modes, wiring, piping diagrams, and component overviews.

5.5 Field Information Report

Report form for documenting unit issues and service details.

5.6 Service Tools

Information on accessing Daikin's service tools and support.

5.7 Field Settings and Adjustments

Guides for adjusting unit settings like heating mode, target temperature, and sound levels.