Trouble Shooting - Daikin FCQ71KVEA Operation Manual

TROUBLE SHOOTING

I. If one of the following malfunctions occurs, take the
measures shown below and contact your dealer.
The system must be repaired by a qualified service person.
WARNING
• When the air conditioner is in abnormal conditions
(smell of something burning, etc), unplug the power
cord from the outlet, and contact your dealer
Continued operation under such circumstances may result
in a failure, electric shock, and fire.
• If a safety device such as a fuse, a breaker or an earth
leakage breaker frequently actuates;
Measure: Do not turn on the main power supply switch.
• If the ON/OFF button does not properly work;
Measure: Turn off the main power supply switch.
• If water leaks from unit.
Measure: Stop the operation.
• If the display " " (INSPECTION), "UNIT No.", and the
OPERATION lamp flash and the "MALFUNCTION CODE"
appears.
UNIT No.
INSPECTION
display
Measure: Notify your dealer and inform him/her of the
display.
II. If the system does not properly operate except for the
above mentioned case, and none of the above men-
tioned malfunctions is evident, investigate the system
according to the following procedures.
1. If the system does not operate at all.
• Check if there is a power failure.
Wait until power is restored. If power failure occurs dur-
ing operation, the system automatically restarts imme-
diately after the power supply recovers.
• Check if a fuse has blown.
Turn off the power supply.
• Is the breaker blown?
Turn the power on with the breaker switch in the off
position.
Do not turn the power on with the breaker switch in the
trip position.
(Contact your dealer.)
Breaker
12
OPERATION lamp
C
H
INDOOR UNIT No. in which a
malfunction occurs
MALFUNCTION
CODE
ON
Switch
Trip position
OFF
2. If the system stops operating after operating the
system.
• Check if the air inlet or outlet of outdoor or indoor unit
is blocked by obstacles.
Remove the obstacle and make it well-ventilated.
• Check if the air filter is clogged.
Ask a qualified service person to clean the air filters
(Refer to MAINTENANCE).
3. The system operates but it does not sufficiently cool
or heat.
• If the air inlet or outlet of the indoor or the outdoor unit
is blocked with obstacles.
Remove the obstacle and make it well-ventilated.
• If the air filter is clogged.
Ask a qualified service person to clean the air filters
(Refer to MAINTENANCE).
• If the set temperature is not proper (Refer to ADJUST-
MENT).
• If the FAN SPEED button is set to LOW SPEED (Refer
to ADJUSTMENT).
• If the air flow angle is not proper (Refer to ADJUSTING
THE AIR FLOW DIRECTION).
• If the doors or the windows are open. Shut doors or
windows to prevent wind from coming in.
• If direct sunlight enters the room (when cooling).
Use curtains or blinds.
• When there are too many inhabitants in the room
(when cooling).
Cooling effect decreases if heat gain of the room is too
large.
• If the heat source of the room is excessive (when cool-
ing).
Cooling effect decreases if heat gain of the room is too
large.