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11

Care

Before making an inquiry or a request for repair, please check the following.
If the problem persists, consult your dealer.

Not a problem

This case is not a problem.

Check

Please check again before requesting 
repairs.

Case

Description / what to check

Operation does not start soon.

• When ON/OFF button was pressed 

soon after operation was stopped.

• 

When the mode was reselected.

• 

This is to protect the air conditioner.

You should wait for about 3 minutes.

Air does not come out.

 

„

In HEAT operation

• 

The air conditioner is warming up. Wait for about 1 to 4 minutes.

•  During defrosting operation, hot air does not fl ow out of the indoor unit.

 

„

When the air conditioner operates immediately after the circuit breaker is turned on

• 

The air conditioner is preparing to operate. Wait for about 3 to 20 minutes.

The HEAT operation stops suddenly 

and a fl owing sound is heard.

• 

The system is taking away the frost on the outdoor unit.

You should wait for about 4 to 12 minutes.

The outdoor unit emits water or 

steam.

„

 In HEAT mode

 

• 

The frost on the outdoor unit melts into water or steam when the air conditioner is in defrost operation.

„

 In COOL or DRY mode

 

• 

Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips.

Mist comes out of the indoor unit.

•  This happens when the air in the room is cooled into mist by the cold airfl ow during cooling 

operation.

The indoor unit gives out odor.

• 

This happens when smells of the room, furniture, or cigarettes are absorbed into the unit 

and discharged with the airfl ow.

(If this happens, we recommend you to have the indoor unit washed by a technician. Consult 
your dealer where you bought the air conditioner.)

The outdoor fan rotates while the 

air conditioner is not in operation.

„

 After operation is stopped:

 

•  The outdoor fan continues rotating for another 1 minute for system protection.

„

 While the air conditioner is not in operation:

 

• 

When the outdoor temperature is very high, the outdoor fan starts rotating for system protection.

The operation stopped suddenly.

(OPERATION lamp* is on.)

•  For system protection, the air conditioner may stop operating on a sudden large voltage fl uctuation.

It automatically resumes operation in about 3 minutes.

• 

Are operation modes all the same for indoor units connected to outdoor units in the 

multi system?

If not, set all indoor units to the same operation mode.

The air conditioner does not 

operate.

(OPERATION lamp* is off.)

•  Hasn’t the circuit breaker turned OFF or a fuse blown?
•  Isn’t it a power failure?
•  Are batteries set in the remote controller?
•  Is the timer setting correct?

Cooling (Heating) effect is poor.

 •  Are the air fi lters clean?
 •  Is there anything blocking the air inlet or the outlet of the indoor and the outdoor units?
 •  Is the temperature setting appropriate?
 •  Are the windows and doors closed?
 •  Are the airfl ow rate and the air direction set appropriately?

Operation stops suddenly.

(OPERATION lamp* is blinking.)

 •  Are the air fi lters clean?
 •  Is there anything blocking the air inlet or the outlet of the indoor and the outdoor units? 

Clean the air fi lters or take all obstacles away and turn the circuit breaker OFF. Then turn it 
ON again and try operating the air conditioner with the remote controller. If the lamp still 

blinks, call your dealer where you bought the air conditioner.

*  The OPERATION lamp is on the receiver of the separately sold wireless remote controller or wired remote controller.

Troubleshooting

01_EN_3P674698-1.indd   11

3/15/2022   4:35:55 PM

Summary of Contents for FFQ09W2VJU9

Page 1: ...rt Enjoy year round comfort Enjoy year round comfort Enjoy year round comfort DAIKIN ROOM AIR CONDITIONER OPERATION MANUAL English Fran ais Espa ol MODELS FFQ09W2VJU9 FFQ12W2VJU9 FFQ15W2VJU9 FFQ18W2VJ...

Page 2: ...not install the unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death Any abnormalities in the operation of the air conditioner or heat pu...

Page 3: ...an other than those recommended by the manufacturer The appliance must be stored in a room without continuously operating ignition sources for example open flames an operating gas appliance or an oper...

Page 4: ...s where oil may splatter or where there is steam in the air g Locations where equipment produces electromagnetic waves h Places with an acid or alkaline mist i Places where fallen leaves can accumulat...

Page 5: ...nit The appearance of the outdoor unit may differ between different models The appearance of the suction grille and remote controller may differ between different models Refrigerant pipes Ground termi...

Page 6: ...ty room setting active Refer to Priority room setting on the next page NIGHT QUIET mode Available only for COOL operation NIGHT QUIET mode requires initial programing during installation Please consul...

Page 7: ...on mode in room B C and D Status of room B C and D when the unit in room A is in COOL operation COOL or DRY or FAN The current operation mode is maintained HEAT The unit enters the standby mode Operat...

Page 8: ...ference Cleaning parts Notes on cleaning For cleaning do not use any of the following Water hotter than 104 F 40 C Volatile liquid such as benzene gasoline and thinner Polishing compounds or liquid in...

Page 9: ...ard to disconnect the hooks and remove the air filter Hook Knob 3 Clean the air filter with a vacuum cleaner or wash it with water If the dust does not come off easily Wash the air filter using a soft...

Page 10: ...Directly apply the type of detergent used for cleaning ventilation fans or ovens wait for about 10 minutes and then rinse with water 5 Reattach the air filter Page 8 6 Reattach the suction grille Refe...

Page 11: ...he operation refer to the operation manual for the remote controller 2 After operation stops turn off the circuit breaker for the room air conditioner 3 Clean the air filter and reattach it 4 To preve...

Page 12: ...ler where you bought the air conditioner The outdoor fan rotates while the air conditioner is not in operation After operation is stopped The outdoor fan continues rotating for another 1 minute for sy...

Page 13: ...75 F 15 24 C MXL models 5 2 75 F 15 2 24 C MXLH models 13 75 F 25 24 C RX models 5 75 F 15 24 C 2 13 F 25 C If a drain pan heater sold separately is installed Indoor temperature 50 86 F 10 30 C Call...

Page 14: ...3P674698 1 M21B351 2203 HT The two dimensional bar code is a manufacturing code 00_CV_3P674698 1 indd 2 3 30 2022 4 28 58 PM...

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