Service manual

19
Lighted
Blinking
Not lighted
Lighted
Blinking
Not lighted
Lighted
Blinking
Not lighted
· Flashing of AREA lamp(left-hand side lamp) indicates abnormality.
No.
1
SymptomOperation indicator lamp
Condition
Correspondence
Abnormal 
point
Left lamp of AREA lamp flashes.
4-time flash


2.5-second OFF
Indoor
control
system
When it cannot properly read data in the
nonvolatile memory of the indoor electronic
control P.C. board.
Indoor unit
and outdoor
unit do not
operate.
• Replace the indoor electronic 
control P.C. board.
No.
1
SymptomOperation indicator lamp
Condition
Correspondence
Abnormal 
point

0.5-second ON


0.5-second OFF
When the electricity is not conducted to the
interlock switch (Fan) of the horizontal vane.
• Refer to 9-6.E "Check of 
installation of the horizontal
vane".
Indoor unit
and outdoor
unit do not
operate.
Attachment 
of the 
horizontal 
vane
All lamps flash at the same time.
No.
SymptomOperation indicator lamp
Condition
Correspondence
Abnormal 
point
1
MXZ type
Operation 
mode 
setting
Outdoor unit
operates but
indoor unit
does not
operate.
When the operation mode of the each indoor 
unit is differently set to COOL(includes DRY) 
and HEAT at the same time, the operation 
mode of the indoor unit that has operated at 
first has the priority.
• Unify the operation mode.
Refer to outdoor unit service 
manual.
2.5-second OFF
Both lamps flash
· Flashing of All lamps indicate abnormality.
· Flashing of AREA lamp(both lamps) indicates abnormality.
· POWER lamp is lighted.
Lighted
Blinking
Not lighted
· Flashing of PLASMA/WASH lamp indicates abnormality.
No.
1
SymptomOperation indicator lamp
Condition
Correspondence
Abnormal 
point
PLASMA/WASH lamp flashes.
2-time flash


2.5-second OFF
When PLASMA DEODORIZING power and/or
PLASMA AIR PURIFYING power can not be
turned OFF even if the PLASMA operation is
turned OFF with remote controller.
Indoor unit
and outdoor
unit do not
operate.
PLASMA 
DEODORIZING/ 
PLASMA 
AIR 
PURIFYING
power control
•Refer to 9-6.F"Check of
PLASMA DEODORIZING
power" or 9-6.G"Check of 
PLASMA AIR PURIFYING 
power".
OB416_--1qxp 12/2/05 4:28 PM Page 19