Daikin Inverter CTXS09DVJU User Manual (English)

Questions and Answers:

L
leejosephAug 22, 2025
What to do if my Daikin Air Conditioner operation stops suddenly and the OPERATION lamp flashes?
- C
  Carolyn MorenoAug 22, 2025
  If your Daikin Air Conditioner stops suddenly and the OPERATION lamp flashes, it could be due to dirty air filters or obstructions blocking the air inlet or outlet of the indoor and outdoor units. To resolve this, turn off the electrical breaker, clean the air filters, and remove any obstacles. Then, turn the breaker back on and try operating the air conditioner with the remote controller. If the lamp continues to blink, it is recommended to contact your authorized Daikin dealer.
S
stephen84Aug 23, 2025
Why Daikin Air Conditioner does not operate and the OPERATION lamp is off?
- N
  Nicole BennettAug 23, 2025
  If your Daikin Air Conditioner is not operating and the OPERATION lamp is off, check the following: * Ensure that the breaker has not been turned OFF or a fuse has not blown. * Verify that there is no power failure. * Make sure that fresh batteries are installed in the remote controller. * Confirm that the timer setting is correct.
C
collinsamyAug 25, 2025
What to do if my Daikin Inverter CTXS09DVJU Air Conditioner operation stopped suddenly and OPERATION lamp is on?
- L
  Lisa CohenAug 26, 2025
  If your Daikin Air Conditioner stops suddenly during operation and the OPERATION lamp is on, it might be due to a large voltage fluctuation, which triggers a system protection mechanism. The air conditioner will automatically resume operation in about 3 minutes.
A
angela83Aug 27, 2025
How to fix Daikin Inverter CTXS09DVJU when operation does not start quickly?
- N
  Nicholas EricksonAug 27, 2025
  If your Daikin Air Conditioner operation does not start quickly, especially after recently stopping or reselecting the mode, it is a protective measure for the unit. Please wait for approximately 3 minutes before attempting to restart the operation.
R
Ralph DavisAug 27, 2025
Why Daikin Inverter CTXS09DVJU Air Conditioner outdoor unit emits water or steam?
- N
  nelsoncynthiaAug 27, 2025
  The outdoor unit of your Daikin Air Conditioner may emit water or steam under the following conditions: * In HEAT mode: The frost on the outdoor unit melts into water or steam during defrost operation. * In COOL or DRY mode: Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips.
C
Curtis HallAug 29, 2025
Why does my Daikin Inverter CTXS09DVJU Air Conditioner smell?
- R
  Rachel MasonAug 29, 2025
  The odor from your Daikin Air Conditioner may be due to smells from the room, furniture, or cigarettes absorbed into the unit and discharged with the airflow. It is recommended to have the indoor unit professionally cleaned by a technician. Consult your authorized dealer where you bought the air conditioner.
T
Taylor ParkAug 30, 2025
What to do if my Daikin Air Conditioner does not turn on?
- K
  Kristine JohnsonAug 30, 2025
  If your Daikin Air Conditioner is not operating and the OPERATION lamp is off, check the following: Ensure that a breaker has not been turned OFF or a fuse blown, verify that there is no power failure, confirm that fresh batteries are installed in the remote controller, and check if the timer setting is correct.
J
James ReedAug 31, 2025
How to improve cooling or heating effect of my Daikin Inverter CTXS09DVJU?
- T
  Thomas ReyesAug 31, 2025
  If you notice a poor cooling or heating effect from your Daikin Air Conditioner, consider the following: * Ensure the air filters are clean. * Check for any obstructions blocking the air inlet or outlet of the indoor and outdoor units. * Verify that the temperature setting is appropriate. * Confirm that all windows and doors are closed. * Ensure the airflow rate and direction are set correctly. * Check if the unit is set to the INTELLIGENT EYE mode.
L
Linda ChristensenSep 2, 2025
What to do if abnormal functioning happens during operation of Daikin Air Conditioner?
- R
  Randall OwensSep 2, 2025
  If an abnormal functioning happens during operation of your Daikin Air Conditioner, it may be due to lightning or radio waves. To reset the unit, turn the circuit breaker OFF, and then turn it back ON. After that, try operating the air conditioner with the remote controller.
L
Lori PerkinsSep 3, 2025
Why hot air does not flow out soon after start of heating operation of Daikin Inverter CTXS09DVJU Air Conditioner?
- K
  Keith Mcneil Jr.Sep 3, 2025
  If hot air does not flow out soon after starting the heating operation on your Daikin Air Conditioner, allow 1 to 4 minutes for the system to reach a certain temperature. The system is designed to start discharging air only after it has reached this temperature.

Daikin Inverter CTXS09DVJU Specifications

General

Brand	Daikin
Model	Inverter CTXS09DVJU
Category	Air Conditioner
Language	English

Summary

Safety Precautions

DANGER Warnings

Imminent hazardous situation leading to death or serious injury.

WARNING Statements

Instructions not followed may cause property damage, injury, or death.

CAUTION Advice

Instructions not followed may cause minor/moderate damage or injury.

Installation and Setup Guidelines

Installation Site Recommendations

Guidance on choosing a suitable installation location and environmental factors.

Neighbor Noise and Electrical Work

Advice on minimizing noise impact and requirements for electrical connections.

System Relocation Procedures

Guidelines for safely moving or relocating the air conditioner.

Component Identification

Indoor Unit Parts

Identification of key components on the indoor air conditioner unit.

Outdoor Unit Parts

Identification of key components on the outdoor air conditioner unit.

Remote Controller Operation

Remote Controller Overview

Explanation of the remote control's display and buttons.

Button Functionality

Detailed description of each button's purpose and operation.

Preparation Before Operation

Setting Remote Controller Batteries

Instructions for inserting and replacing batteries in the remote controller.

Remote Controller Usage

Guidance on aiming the transmitter and optimal usage distance.

Remote Controller Mounting and Usage Notes

Mounting the Controller Holder

Instructions for securely attaching the remote controller holder to a wall.

Remote Controller Placement Advice

Important considerations for optimal remote controller performance and placement.

Initial Setup and Energy Saving

Setting the Clock and Breaker

Steps for setting the clock and turning on the main power breaker.

Energy Saving Recommendations

Tips for efficient operation and reducing energy consumption.

Basic Operation Modes

Starting and Stopping Operation

Instructions for initiating and terminating the air conditioner's operation.

Temperature and Airflow Settings

How to adjust temperature settings and fan speed for different modes.

Operation Refinements

Airflow Rate Adjustment

How to select different airflow rates for cooling, heating, and fan modes.

Mode-Specific Operation Notes

Important considerations for HEAT, DRY, AUTO modes, and airflow effects.

Airflow Direction Control

Horizontal Flap Adjustment

Steps to set the desired position for the horizontal air flaps.

Vertical Louver Adjustment

Steps to set the desired position for the vertical air louvers.

3-D Airflow and Louver Angles

Activating 3-D Airflow

How to enable simultaneous flap and louver movement for 3-D airflow.

Louver and Flap Angle Guidance

Important considerations regarding louver angles and flap movement ranges.

POWERFUL Operation

Starting and Canceling POWERFUL Operation

How to activate maximum cooling/heating effect and how to exit.

POWERFUL Operation Notes

Details on mode effects, temperature, airflow, and availability.

Outdoor Unit Quiet Operation

Activating and Canceling Quiet Operation

How to reduce the noise level of the outdoor unit and how to disable it.

Quiet Operation Usage Notes

Usage conditions and limitations for outdoor unit quiet operation.

HOME LEAVE Operation

Starting and Canceling HOME LEAVE

How to activate and deactivate the function to record and recall preferred settings.

Setting HOME LEAVE Parameters

Instructions for setting preferred temperature and airflow for HOME LEAVE.

Understanding HOME LEAVE Functionality

Energy Saving and Comfort Examples

Explains how HOME LEAVE saves energy and provides comfort, with usage examples.

HOME LEAVE Operation Notes

Details on mode availability, previous settings, and simultaneous operation limitations.

INTELLIGENT EYE Operation

Starting and Canceling INTELLIGENT EYE

How to activate and disable the infrared sensor for automatic operation adjustments.

INTELLIGENT EYE Energy Saving

Energy Saving Benefits

Details on how INTELLIGENT EYE adjusts temperature and airflow for energy savings.

Sensor Application and Precautions

Sensor range, detection factors, and important user precautions for the INTELLIGENT EYE.

Timer Operations

Using the OFF Timer

Instructions for setting the timer to switch the unit off automatically.

Night Set Mode

Automatic temperature adjustment for comfortable sleep during timer operation.

Advanced Timer Functions

Using the ON Timer

Instructions for setting the timer to switch the unit on automatically.

Combining ON/OFF Timers and Resetting

How to use both timers together and when to reset them.

Multi System Operation

Selecting Operation Mode in Multi Systems

How to manage operation modes when multiple indoor units are connected.

Outdoor Unit Quiet Operation in Multi Systems

How to use quiet operation across multiple indoor units.

Cooling/Heating Mode Lock

Functionality for forcing all units to a specific cooling or heating mode.

Priority Room Setting

Operation Mode Priority

How the Priority Room setting affects operation mode selection in multi-unit systems.

Priority During Special Operations

Impact of Priority Room on POWERFUL and QUIET operations.

Care and Cleaning

Cleaning the Front Panel

Step-by-step instructions for removing, cleaning, and reattaching the front panel.

Cleaning Precautions

Important warnings and advice regarding cleaning agents and methods.

Filter Maintenance

Air Filter Cleaning and Replacement

How to wash, vacuum, and replace air filters for optimal performance.

Air-Purifying Filter Care

Instructions for maintaining and replacing the air-purifying filter.

Unit Checks and Idle Procedures

Pre-Operation Checks

Essential checks for the unit's base, fittings, and airflow paths.

Preparing for Long Idle Periods

Steps to take before extended non-operation, including drying and battery removal.

Filter Maintenance Notes

Consequences of dirty filters and how to order replacement parts.

Troubleshooting Common Issues

Non-Operational Issues

Explanation of conditions that appear abnormal but are not operational problems.

Operational Anomalies

Troubleshooting common issues like slow starts, unusual sounds, and odors.

Troubleshooting Specific Problems

Unit Not Operating or Poor Effect

Checks for no operation, poor cooling/heating, and troubleshooting steps.

Sudden Stops and Abnormal Functioning

Diagnosing sudden stops, blinking lights, and abnormal operation.

Service and Maintenance

Contacting Authorized Dealers

Conditions requiring immediate contact with an authorized dealer for safety or malfunction.

Prohibiting Self-Repair

Warning against attempting repairs or modifications without professional training.

Periodical Maintenance

Importance of professional maintenance for long-term performance and avoiding issues.

Fault Diagnosis by Remote Controller

Entering Diagnostic Mode

How to access fault codes by holding the TIMER CANCEL button.

Interpreting Error Codes

List of system codes and their meanings for diagnosing faults.

Related product manuals

Daikin Inverter FTXS85LVMA

44 pages

Daikin Inverter FTXS20KVMA