13. FRESH-AIR INTAKE
14. A ERROR DISPLAY
(1) When removing the cabinet (iron
plate), be careful not to damage the
indoor unit internal parts and sur-
rounding area (outer case).
(2) When processing the cabinet (iron
plate), be careful not to injure your-
self with burrs, etc.
(1) Open up the knockout hole for the fresh-air intake,
as shown in Fig. 50. (If using half-concealed installa-
tion, open up the top knockout hole instead.)
Operation can be checked by lighting and flashing of
the display section OPERATION, TIMER and VERTICAL
SWING lamps.
Perform judgment in accordance with the following.
• Test running
When the air conditioner is run by pressing the
remote controller test run button, the OPERATION,
TIMER and VERTICAL SWING lamps flash slowly at
the same time.
• Error
The OPERATION, TIMER and VERTICAL SWING
lamps operate as follows (Table 7) according to the
error contents.
(2) Fasten the round flange (optional) to the fresh-air
intake, as shown in Fig. 51. (If using half-concealed
installation, attach to the top.)
(3) Connect the duct to the round flange.
(4) Seal with a band and vinyl tape, etc. so that air does
not leak from the connection.
Fig. 50
– 13 –
Table 7
Error display
OPERATION
lamp
TIMER
lamp
VERTICAL
SWING lamp
Error contents
Model information abnormal
(permanent type)
Drain abnormal (permanent
type)
Indoor fan abnormal
Room air temperature
thermistor open circuited
Room air temperature
thermistor shortcircuited
Piping thermistor open
circuited
Piping thermistor short-
circuited
Serial communications
abnormal
Reverse phase wire
connection abnormal
Outdoor heat exchange
thermistor open circuited
Outdoor heat exchange
thermistor shortcircuited
Low pressure abnormal
Outdoor discharge
thermistor open circuited
Outdoor discharge
thermistor shortcircuited
Discharge temperature
abnormal
Outdoor air temperature
thermistor open circuited
Outdoor air temperature
thermistor shortcircuited
Goes off
Goes off
Goes off
Goes off
Blinks
Goes off
Blinks
Goes off
Goes off
Goes off
Blinks
Goes off
Goes off
Blinks
Goes off
Goes off
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
Pulses
2 times
Pulses
3 times
Pulses
6 times
Pulses
5 times
Pulses
7 times
Pulses
4 times
Blinks
Pulses
4 times
Pulses
6 times
Pulses
2 times
Pulses
3 times
Pulses
5 times
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
For half concealed
installation
Indoor unit
SWING SWING
TIMER OPERATION
MANUAL
AUTO
Fig. 53
OPERATION lamp (Red)
TIMER lamp (Green)
Fig. 51
Round duct (option parts)
Fig. 52
Duct
[After completing “2. INDOOR UNIT INSTALLATION”...]
VERTICAL SWING lamp (Orange)
