Filter
Top Products
– 119 –
Error mode detected by indoor unit (1)
Operation of diagnostic function
Block
display
[MODE] lamp
5Hz flash
Check
code
Cause of operation
Error in indoor fan system
Revolutions frequency error of
fan
Status of air
conditioner
All stop
Condition
Displayed when
error is detected
Judgment and measures
1. Check indoor fan motor connector
circuit (CN210).
2. Check indoor fan.
3. Check indoor P.C. board (Main P.C.
board).
Operation
continues
Operation
continues
All stop
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
1. Check indoor P.C. board
(EEPROM and peripheral circuits)
(Main P.C. board).
Error in indoor unit or other
positions
1. EEPROM access error
Outside error input
Detected by input voltage level
from outside devices
1. Check outside devices.
2. Check indoor P.C. board (Main P.C.
board).
Outside interlock input
Detected by input voltage level
from outside devices
Error mode detected by indoor unit (2)
Operation of diagnostic function
Check
code
Cause of operation
Serial return signal is not sent
from No. 1 indoor unit to
remote controller.
• Miscabling of inter-unit cable
between remote controller
and indoor unit
• Miss-setting of indoor unit No.
(Group address)
Status of air
conditioner
ON/OFF
Condition
Displayed when
error is detected
Judgment and measures
1. Indoor unit does not completely operate.
• Check inter-unit cable.
• Check indoor P.C. board. (Main/Sub P.C. boards)
• Check remote controller.
2. In normal operation
• Check setting of indoor unit No.
(SW01) (Sub P.C. board)
• Check remote controller.