Specifications

258
2
Error display : No display
LCD display : No display
[Power supply line error]
3
[Communication error between remote controller~Indoor unit]
Red LED
Green LED
Stays OFF
Stays OFF
Outdoor unit
Indoor unit
Red
LED
Green
LED
Stays
OFF
Stays
OFF
Indoor unit
Green LED
Red LED
*3 time flash
(During unit operation)
Keeps flashing
Flash of green LED means CPU is normal.
* If the remote controller wire is broken at the
power ON, it does not illuminate.
Indoor and outdoor unit
Green LED
Red LED
Stays OFF
Keeps flashing
(1)
Note (1) With the separate power supplies for
indoor/outdoor units, the outdoor unit
green LED may flash in some cases.
Power supply checked
between ~ or
L1, L2, L3, N?
Indoor/outdoor unit
transfomer CNW
2 (indoor).
CNA
2 (outdoor). Is AC 17V
checked between (blue)
(blue) and AC 8V between
(red) ~ (red)?
Is there
DC 10V checked
between X (red) ~ Z (black)
of indoor unit terminal
block?
No power supply, wiring
error of power line
Repair
Power supply
reset
Unit is normal
(Malfunction by noisse)
Defective remote control-
ler PCB Replacement
Poor connection of wired remote controller
cord (wiring error) or broken wire Repair
Defective remote controller PCB
Replacement
Is it
normalized
YES
YES
YES
YES
NO
NO
Note (1) Z for ground
NO
NO
• Blown fuse (indoor unit:3.15A, outdoor unit:3.15A)
Replacement
• Defective transfomer Replacement
• Broken power cables of inside or outside of
unit Repair
Is the
remote controller
covering multiple
units?
Is it
normalized
Is the power ON
on all indoor units?
Defectve indoor unit
PCB Replacement
Power supply reset Power supply ON
Unit is normal.
(Malfunction by accidental
noise)
YES
YES
YES
NO
NO
NO
Defectve indoor unit
PCB Replacement
Error display: