Daikin BRYQ-A - User Manual

Questions and Answers

A
Amanda PerkinsAug 23, 2025
What does error code A6 mean on my Daikin BRYQ-A Air Conditioner and how to fix it?
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  Matthew NortonAug 23, 2025
  Error code A6 on your Daikin Air Conditioner indicates a problem with the fan motor. This could be due to several reasons: * **Fan motor locked:** The RPM counter may not be sending a signal from the motor to the indoor main board when outputting. * **Fan motor overcurrent:** Check the motor power circuit. You may need to replace the fan motor or the indoor board. * **Fan motor locked:** The RPM counter may not be sending a signal even when the unit is off.
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.
L
Laura BarrySep 4, 2025
What does error code U4 mean on Daikin BRYQ-A Air Conditioner?
- B
  Benjamin ChapmanSep 4, 2025
  Daikin Air Conditioner error code U4 indicates a communication error between the indoor unit and the BS unit. Check the communication between the BS unit and the indoor unit(s).
A
Alexander JohnsonSep 2, 2025
What does Daikin BRYQ-A Air Conditioner error code AF mean?
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  henrydanielSep 3, 2025
  Daikin Air Conditioner error code AF indicates that the float switch is open during thermo off. To resolve this: * Check for drain water returning from other indoor units. * Ensure the expansion valve is correctly closing during thermo off.
S
Sara MccoySep 1, 2025
How to troubleshoot Daikin Air Conditioner error code C5?
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  thomasmichaelSep 1, 2025
  Daikin Air Conditioner error code C5 indicates a problem with the gas thermistor. This may be caused by: * **Gas thermistor short circuit:** Check the gas thermistor resistance. * **Gas thermistor open circuit:** Check the wire harness connections to the gas thermistor.
C
Chad SteinAug 30, 2025
Why does my Daikin BRYQ-A show error code A7?
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  nicholasperkinsAug 30, 2025
  Daikin Air Conditioner error code A7 indicates that there is no detection contact with the swing motor. To troubleshoot: * Check if the swing motor runs when output is 230VAC. * Check the contact position detection for open and close states.
L
Linda BaileyAug 29, 2025
What causes Daikin Air Conditioner error code C9 and how to resolve it?
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  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.
L
Lisa PattonAug 27, 2025
How to fix Daikin BRYQ-A error code A3?
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  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.
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tjenkinsAug 27, 2025
What does error code C4 mean on Daikin Air Conditioner?
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  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.
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.

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

Cooling Capacity	2.5 kW
Heating Capacity	3.2 kW
Refrigerant	R32
Power Supply	220-240V, 50Hz
Indoor Unit Weight	9 kg
Outdoor Unit Noise Level	49 dB
Noise Level (Outdoor)	49 dB