6
TROUBLE SHOOTING
If one of the following malfunctions occur, take the
measures shown below and contact your Panasonic
dealer.
The system must be repaired by a qualified service
person.
•
If a safety device such as a fuse, a breaker or an earth leakage
breaker frequently actuates, or the ON/OFF switch does not
properly work;
Measure: Turn off the main power switch.
•
If water leaks from unit;
Measure: Stop the operation.
•
If the display
, the unit number and the operation lamp
flash and the malfunction code appears; (see figure 12)
1 Inspection display
2 Indoor unit number in which a malfunction occurs
3 operation lamp
4 Malfunction code
Measure: Notify your Panasonic dealer and report the malfunction
code.
If the system does not properly operate except for the
above mentioned cases and none of the above mentioned
malfunctions is evident, investigate the system according
to the following procedures.
1) If the system does not operate at all;
•
Check if there is no power failure.
Wait until power is restored. If power failure occurs during
operation, the system automatically restarts immediately after
the power supply is recovered.
•
Check if no fuse has blown or breaker has worked. Change the
fuse or reset the breaker if necessary.
2) If the system goes into fan only operation, but as soon as it goes
into heating or cooling operation, the system stops;
•
Check if air inlet or outlet of outdoor or indoor unit is not blocked
by obstacles.
Remove any obstacle and make it well-ventilated.
•
Check if the remote controller display shows
(time to clean
the air filter). (Refer to the chapter “Maintenance” in the indoor
unit manual)
3) The system operates but cooling or heating is insufficient;
•
Check if air inlet or outlet of outdoor or indoor unit is not blocked
by obstacles.
Remove any obstacle and make it well-ventilated.
•
Check if the air filter is not clogged. (Refer to the chapter
“Maintenance” in the indoor unit manual)
•
Check the temperature setting.
•
Check the fan speed setting on your remote controller.
•
Check for open doors or windows. Shut doors and windows to
prevent wind from coming in.
•
Check if there are too many occupants in the room during
cooling operation
•
Check if the heat source of the room is excessive.
•
Check if direct sunlight enters the room.
Use curtains or blinds.
•
Check if the air flow angle is not proper.
NOTES
3VA11387-2A̲Eng
01.10.9, 7:54 PM
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