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Daikin FHQ140CAVEB - User Manual

Daikin FHQ140CAVEB
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SPLIT SYSTEM Air Conditioners
SYSTEM Air Conditioners
OPERATION MANUAL
MODELS
(Ceiling Suspended type)
SPLIT SYSTEM VRV SYSTEM
FHQ35CAVEB FXHQ32AVEB
FHQ50CAVEB FXHQ63AVEB
FHQ60CAVEB FXHQ100AVEB
FHQ71CAVEB
FHQ100CAVEB
FHQ125CAVEB
FHQ140CAVEB
FHQ140CAVEA
English
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00_CV_3P303408-2N_01.fm Page 1 Monday, February 17, 2014 9:23 AM

Table of Contents

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Questions and Answers

  • J
    Jasmine EverettAug 4, 2025
    Why is my Daikin Air Conditioner not cooling or heating properly?
    • E
      Eric RossAug 4, 2025
      If your Daikin Air Conditioner isn't cooling or heating enough, several factors could be the cause. First, check for any obstructions blocking the air inlet or outlet of either the outdoor or indoor unit and remove them to ensure proper ventilation. Also, ensure the air filter isn't clogged; if it is, have it cleaned by a qualified service person. Make sure that the set temperature, fan speed, and airflow direction are set correctly. Additionally, close any open doors or windows and use curtains or blinds to block direct sunlight.
  • A
    Amanda GrahamAug 8, 2025
    How to fix a Daikin Air Conditioner that won't turn on?
    • M
      Michelle WhiteAug 8, 2025
      If your Daikin Air Conditioner isn't turning on, there might be a few reasons. First, check if a fuse has blown and turn off the power supply. Next, see if the power circuit breaker has tripped; if it's in the OFF position, switch it back on, but if it's in the trip position, contact your local dealer. Also, verify if there's a power outage, and if so, wait for the power to be restored. Note that the air conditioner will automatically restart after a power failure.
  • C
    Charles TylerAug 12, 2025
    Why is my Daikin FHQ140CAVEB Air Conditioner turning on and off by itself?
    • R
      Robert HarrisAug 12, 2025
      If your Daikin Air Conditioner turns on or off without you pressing the ON/OFF button, check if the ON/OFF timer is activated and turn it off. Also, verify if any remote control device is connected, and contact the central control room that directed the stop. Finally, check if the display for centralized control is lit and contact the central control room that directed the stop.
  • J
    Janet EllisonAug 17, 2025
    What to do if Daikin FHQ140CAVEB detects multiple master units?
    • W
      William EricksonAug 17, 2025
      If your Daikin Air Conditioner detects multiple master units, connect the remote controller to only one indoor unit.
  • M
    Marc JimenezAug 20, 2025
    What to do if Daikin FHQ140CAVEB has gas shortage due to clogging in refrigerant piping?
    • J
      Joseph GibsonAug 21, 2025
      If you suspect clogging in the refrigerant piping system of your Daikin Air Conditioner, check for a failure to open the stop valve and any clogging within the refrigerant system.
  • P
    Patricia RichardsonAug 26, 2025
    What does excess indoor units connected error mean on Daikin FHQ140CAVEB?
    • P
      peter76Aug 26, 2025
      This error will be displayed if five or more indoor units are connected to your Daikin Air Conditioner.
  • T
    Thomas RobertsAug 29, 2025
    Why does my Daikin Heat Pump emit an odor?
    • M
      Megan FaulknerAug 29, 2025
      If your Daikin Heat Pump emits an odor, it's likely due to room smells and cigarette odors that have accumulated inside the indoor unit. To resolve this, the inside of the indoor unit must be cleaned.

Summary

Disposal Requirements

Safety Precautions

Warning and Caution Classifications

Explains the meaning of WARNING and CAUTION labels for user safety.

Malfunctioning Appliance Warning

Advises immediate power off and dealer contact for malfunctioning units to prevent fire or shock.

Child Safety and Appliance Handling

Details precautions for child safety, appliance placement, and avoiding hazards like fire or electric shock.

Before Operation

FHQ Operation Guidance

Instructions specific to FHQ models regarding operation manuals and system types.

Operation Characteristics

Cooling Operation Characteristics

Explains how cooling and automatic cooling operations function, including frost prevention.

Heating Operation Characteristics

Details heating and automatic heating operations, including start-up procedures and frost removal.

Defrost Operation

Describes the defrost operation for the outdoor unit to remove frost and maintain efficiency.

Multi-Unit Control System Precautions

FXHQ System Configuration

Details for FXHQ models regarding group and dual remote controller systems.

Names and Functions of Parts

Identifies and explains the function of various parts of the air conditioner system.

Operation Range Specifications

FHQ Cooling and Heating Range

Specifies the operating temperature and humidity ranges for FHQ models.

Installation Site Requirements

Suitable Installation Locations

Lists recommended locations for installation, avoiding specific environmental factors.

Wiring and Electrical Requirements

Details electrical wiring requirements and the need for qualified personnel.

Noise Considerations for Installation

Advises on selecting installation sites to minimize noise disturbance to neighbors.

Drain Piping Installation

Emphasizes proper drain piping to ensure complete drainage and prevent water leakage.

Operation Procedures

FHQ Operation Steps

Provides step-by-step guidance for operating FHQ model air conditioners.

FXHQ Operation Steps

Guides users on operating FXHQ model air conditioners using indoor and outdoor units.

Outside Air and Heating Capacity

Program Dry Operation Characteristics

Airflow Direction Adjustment

Up and Down Airflow Adjustment

Explains how to adjust airflow direction vertically using the remote controller.

Left and Right Airflow Adjustment

Details how to manually fix the left and right airflow direction.

Horizontal Blade Movement

Airflow Direction Based on Operation Mode

Describes how horizontal blade movement differs across cooling, heating, and dry modes.

Group Control Airflow Direction

Notes limitations on individual airflow direction setting for group-controlled systems.

Recommended Airflow Positions

Suggests optimal airflow direction positions for cooling and heating.

Optimum Operation

Maintenance

General Maintenance Precautions

Provides safety warnings and cautions for performing maintenance on the air conditioner.

How to Clean the Air Filter

Details the procedure for cleaning the air filter and when to replace it.

Air Filter Cleaning Procedure

Suction Grille Cleaning Procedure

Cleaning Air Outlet, Panel, and Remote

Cleaning Before and After Seasonal Use

Start-up After Long Stop

Provides checks and procedures for starting the unit after a prolonged period of non-use.

Not Malfunction of the Air Conditioner

Heating Operation Timing

Explains normal operational pauses during heating within 6 hours of power supply.

No Operation After Button Press

Addresses delayed restarts due to safety devices preventing overload.

Operation Pauses or Stops

Explains causes for operation stopping or pausing, including communication errors and defrost cycles.

Fan Speed Difference

Details reasons why fan speed may not change as expected during operation modes.

Airflow Direction Differences

Explains discrepancies between set airflow direction and actual blade movement.

Horizontal Blades Not Closing

Addresses the situation where horizontal blades do not close after operation stops.

White Mist Output

Explains the cause of white mist output, especially in humid conditions.

Trouble Shooting

No Operation

Checks for issues like blown fuses, tripped circuit breakers, or power failure.

Unit Stops After Operation

Troubleshoots reasons for the unit stopping after running, like blocked inlets or clogged filters.

Insufficient Cooling or Heating

Addresses poor cooling/heating performance due to blockages, filters, or incorrect settings.

Unintended Operation Start;Stop

Investigates operations starting or stopping without user input, checking timers and remote controls.

Daikin FHQ140CAVEB Specifications

General IconGeneral
BrandDaikin
ModelFHQ140CAVEB
CategoryAir Conditioner
LanguageEnglish

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