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Daikin BRYQ-A - User Manual

Daikin BRYQ-A
56 pages
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Service
Manual
VRV4 indoor units
ESIE15-11A
BRYQ-A
BYCQ-D
CAV/CYV
VKM
FXKQ-M
FXFQ-P
FXCQ-A
FXSQ-P
FXDQ-M
FXUQ-A
FXFQ-A
FXMQ-P
FXHQ-A
FXDQ-A
FXZQ-A
FXAQ-P
FXLQ
FXNQ
FXSQ-A
FXTQ-A

Questions and Answers

  • E
    Eric AbbottSep 10, 2025
    What to do for Daikin BRYQ-A Air Conditioner error code A0?
    • J
      Jacqueline DunnSep 10, 2025
      If your Daikin Air Conditioner displays error code A0, it may indicate a fault board. Check setting 22-1-3: T1-T2 NC. If correct, it indicates an indoor board fault.
  • E
    Erik HallAug 25, 2025
    What does error code CE mean on my Daikin BRYQ-A?
    • S
      Samuel EdwardsAug 26, 2025
      Error code CE on your Daikin Air Conditioner indicates a problem with an optional sensor. The issue could stem from: * **No signal from optional presence sensor:** Check the wire harness connections. * **No signal from optional floor temperature sensor:** Check the wire harness connections. * **Faulty signal from optional floor temperature sensor:** Check the pins connector for a short circuit. * **High temperature detection or electric noise floor temperature sensor:** Check the resistance of the floor temperature sensor.
  • T
    tjenkinsAug 27, 2025
    What does error code C4 mean on Daikin Air Conditioner?
    • T
      Timothy HamiltonAug 27, 2025
      Error code C4 on your Daikin Air Conditioner indicates a problem with the coil thermistor. This could be due to: * **Coil thermistor short circuit:** Check the coil thermistor resistance. * **Coil thermistor open circuit:** Check the wire harness connections to the coil thermistor.
  • L
    Lisa PattonAug 27, 2025
    How to fix Daikin BRYQ-A error code A3?
    • L
      Lindsey LeeAug 27, 2025
      Daikin Air Conditioner error code A3 indicates that the float switch is open during thermo on (cooling). To resolve this issue: * Check the float switch status. * Ensure there is no blockage in the drain pipe. * Verify that the drain pipe raiser is less than 600 mm.
  • L
    Linda BaileyAug 29, 2025
    What causes Daikin Air Conditioner error code C9 and how to resolve it?
    • M
      Matthew WilliamsAug 29, 2025
      Daikin Air Conditioner error code C9 is related to the air thermistor. The cause may be: * **Air thermistor short circuit:** Check the air thermistor resistance. * **Air thermistor open circuit:** Check the wire harness connections to the air thermistor.
  • F
    Fernando WalkerNov 21, 2025
    What to do if my Daikin Air Conditioner shows error code AH?
    • J
      John LeblancNov 21, 2025
      If your Daikin Air Conditioner displays error code AH, there are several potential causes related to the self-cleaning function. Here's what you can check: * **Communication Error:** Verify the wire harness connections between the main PCB and the self-cleaning PCB. * **Dust Detection Sensor Error:** Inspect the wire harness connections for the dust detection sensor. * **Dust Collection Error:** Look for any clogging caused by dust between the brush-arm and the dust collector box. * **Air Filter Rotation Error:** Examine the rotation mechanism of the air filter. * **Damper Rotation Error:** Check the rotation mechanism of the damper. * **Filter Cleaning Time Error:** This may occur if the filter auto-cleaning program could not be performed during a 24-hour operation. * **Aut...
  • G
    gregoryhicksSep 18, 2025
    What does error code C6 mean on Daikin Air Conditioner?
    • S
      Sarah MayerSep 18, 2025
      Daikin Air Conditioner error code C6 indicates a faulty combination of the main PCB and the inverter PCB fan motor. Change the inverter PCB fan motor to the correct type.
  • S
    Susan SchultzSep 22, 2025
    What does error code AJ mean on Daikin BRYQ-A?
    • B
      Becky VanceSep 22, 2025
      Daikin Air Conditioner error code AJ can be caused by: * **Capacity adaptor missing:** Add the corresponding capacity adaptor onto the spare part PCB. * **Incorrect expansion valve motor:** Use the correct expansion valve motor (between gear type and direct drive).
  • A
    Alan CooperSep 8, 2025
    What does error code UE mean on Daikin BRYQ-A Air Conditioner?
    • S
      Scott PetersonSep 8, 2025
      Daikin Air Conditioner error code UE indicates a communication error with the central control device. Check the communication from the indoor unit to central control. Verify the existing group number set on the indoor unit and the registered group number in the central control.
  • S
    Samuel BrightSep 5, 2025
    What does error code U9 mean on Daikin Air Conditioner?
    • J
      Julie TranSep 6, 2025
      Daikin Air Conditioner error code U9 indicates a communication error between other indoor units and the BS unit. Check other indoor units for errors other than U9.

Summary

Introduction to VRV4 Indoor Units

Version Log

Records changes and updates made to the service manual over time.

VRV4 System Description

Explains the concept and overall layout of the VRV4 heat recovery system.

How to Use This VRV4 Manual

Provides guidance on navigating and effectively utilizing the manual's content.

VRV4 Indoor Unit Troubleshooting Guide

Retrieve VRV4 Error Codes and Data

Instructions for accessing malfunction codes and operational data via remote controllers.

VRV4 Error Code Troubleshooting

A comprehensive guide to diagnosing and resolving specific error codes encountered.

VRV4 Indoor Unit Field Settings Configuration

Wireless Remote Controller BRC4 C;BRC7 C;E Settings

Accessing and configuring field settings using wireless remote controllers.

Wired Remote Controller BRC2;3 E52 Field Settings

Accessing and configuring field settings using BRC2/3E52 wired remote controllers.

Wired Remote Controller BRC1 D51;52 Field Settings

Accessing and configuring field settings using BRC1D51/52 wired remote controllers.

Wired Remote Controller BRC1 E51 Field Settings

Accessing and configuring field settings using BRC1E51 wired remote controllers.

Wired Remote Controller BRC1 E52 Field Settings

Accessing and configuring field settings using BRC1E52 wired remote controllers.

General Indoor Unit Field Settings

Common field settings applicable across most indoor unit models.

VRV4 Factory Settings and Reset

Procedures for performing factory resets and understanding default configurations.

VRV4 Field Settings by Indoor Unit Type

Table detailing default field settings for various indoor unit models.

Daikin BRYQ-A Specifications

General IconGeneral
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
RefrigerantR32
Power Supply220-240V, 50Hz
Indoor Unit Weight9 kg
Outdoor Unit Noise Level49 dB
Noise Level (Outdoor)49 dB

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