Troubleshooting - Daikin FDMQ09RVJU Operation Manual

Troubleshooting

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.
Case
Operation does not start soon�
• When ON/OFF button was pressed
soon after operation was stopped.
• When the mode was reselected.
Air does not come out�
The HEAT operation stops suddenly
and a fl owing sound is heard.
The outdoor unit emits water or
steam�
Mist comes out of the indoor unit�
The indoor unit gives out odor�
The outdoor fan rotates while the
air conditioner is not in operation�
The operation stopped suddenly�
(OPERATION lamp is on�)
The air conditioner does not
operate�
(OPERATION lamp is off�)
Cooling (Heating) effect is poor�
Operation stops suddenly�
(OPERATION lamp fl ashes.)
9
Description / what to check
• This is to protect the air conditioner.
You should wait for about 3 minutes.
„ 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 system is taking away the frost on the outdoor unit.
You should wait for about 4 to 12 minutes.
„ 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.
„ This happens when the air in the room is cooled into mist by the cold airfl ow during cooling
operation.
„ 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.)
„ 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.
„ For system protection, the air conditioner may stop operating on a sudden large voltage fl uctuation.
It automatically resumes operation in about 3 minutes.
• 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?
• 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?
• 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.
• 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 and confi rm that the lamps blink.
Moreover, when the operation mode is in "AUTO", set all indoor unit operation modes to
"COOL" or "HEAT" for a moment and check again that the lamps are normal.
If the lamps stop blinking after the above steps, there is no malfunction.
Check
Please check again before requesting
repairs.
English