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Daikin R50GVAL User Manual

Daikin R50GVAL
501 pages
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Pocket
Manual
Service Diagnosis
Si20 - 701_B

Table of Contents

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Daikin R50GVAL Specifications

General IconGeneral
BrandDaikin
ModelR50GVAL
CategoryAir Conditioner
LanguageEnglish

Summary

Symptom-based Troubleshooting

Overview of Symptoms

Provides a general overview of common operational symptoms and their corresponding troubleshooting measures.

Equipment Does Not Operate

Troubleshooting steps for when the air conditioning unit fails to start or operate.

Indoor Fan Operates, Compressor Does Not

Diagnosing issues when the indoor fan runs but the compressor remains inactive.

Operation Stops Immediately After Starting

Steps to troubleshoot cooling or heating operations that start and then stop abruptly.

No Cooling Provided

Troubleshooting procedures when the unit runs but does not deliver cooling.

Loud Noise or Vibration Issues

Diagnosing and resolving problems related to excessive noise or vibration from the unit.

Troubleshooting by Remote Controller

Self-Diagnosis Procedure

Instructions for performing self-diagnosis using the remote controller, including error code interpretation.

Error Codes and Their Descriptions

A comprehensive list of error codes displayed on the remote controller and their meanings.

Indoor Unit PCB Abnormality (A1)

Troubleshooting steps for errors related to the indoor unit's Printed Circuit Board (PCB).

Electronic Expansion Valve Coil Abnormality (A9)

Diagnosing issues with the electronic expansion valve coil, including open or short circuits.

Compressor Overcurrent (E6)

Troubleshooting steps for instances of compressor overcurrent, potentially due to high pressure or voltage issues.

Low Pressure Sensor System Abnormality (H4)

Diagnosing abnormalities related to the low pressure sensor system, including continuity and connection checks.

Refrigerant Shortage (U0)

Troubleshooting guide for issues related to insufficient refrigerant levels or clogged piping systems.

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