Daikin FXAQ-P User Manual

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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

Table of Contents

Other manuals for Daikin FXAQ-P

Technical Data23 pages

Questions and Answers:

M
Monica PattersonAug 23, 2025
What does error code A6 mean on my Daikin FXAQ-P Air Conditioner and how to fix it?
- A
  Anthony ForbesAug 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.
J
Joel GuzmanAug 25, 2025
What does error code CE mean on my Daikin FXAQ-P?
- W
  William GriffithAug 25, 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.
L
Lindsay LopezAug 27, 2025
What does error code C4 mean on Daikin FXAQ-P?
- N
  Nancy FoleyAug 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.
B
Brittany WalkerAug 27, 2025
How to fix Daikin FXAQ-P Air Conditioner error code A3?
- Q
  qjohnsonAug 28, 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.
B
breanna04Aug 29, 2025
What causes Daikin FXAQ-P Air Conditioner error code C9 and how to resolve it?
- P
  pjohnsonAug 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.
A
Anthony AdamsAug 30, 2025
Why does my Daikin FXAQ-P Air Conditioner show error code A7?
- M
  Mrs. Phyllis OrtegaAug 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.
N
Norma BrooksSep 1, 2025
How to troubleshoot Daikin FXAQ-P error code C5?
- M
  Michael MedinaSep 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.
M
Michael RaySep 2, 2025
What does Daikin Air Conditioner error code AF mean?
- B
  barbaradavisSep 2, 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.
N
Noah HarrisSep 4, 2025
What does error code U4 mean on Daikin FXAQ-P Air Conditioner?
- W
  Willie YoungSep 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).
J
James MooreSep 5, 2025
What does error code U9 mean on Daikin FXAQ-P Air Conditioner?
- Z
  zcookSep 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.

Daikin FXAQ-P Specifications

General

Brand	Daikin
Model	FXAQ-P
Category	Air Conditioner
Language	English

Summary

Part 2. Troubleshooting

Error Code and Data Retrieval

Guides on accessing error codes and diagnostic data from VRV units.

BRC1D Controller: Error and Service Access

Accessing error codes and service menus via the BRC1D controller.

BRC1/2/3E Controller: Error and Service Access

Accessing error codes and service menus via the BRC1/2/3E controller.

BRC4/7 Controller: Error Code Retrieval

Procedures for retrieving error codes using the wireless BRC4/7 controller.

Troubleshooting by Error Code

Detailed guide for troubleshooting based on specific error codes.

Part 3. Field Settings

BRC4C/BRC7C/E Wireless Controller Settings

BRC2/3E52 Wired Controller Field Settings

BRC1D51/52 Wired Controller Field Settings

BRC1E51 Wired Controller Field Settings

BRC1E52 Wired Controller Field Settings

General Indoor Unit Field Settings

FXS/FXN/FXD/FXMQ/FXTQ Unit Settings

Factory Settings and Reset

Procedures for performing factory resets and viewing default settings.

Default Field Settings by Unit Type

Default field settings for various indoor unit models.

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