49
English
ins
tallation
When error occurs, take necessary measures by referring to the following table. For more information on necessary
measures for errors, refer to the service manual.
Error indicator
Error
Measures for the installer to take
Display
LED Display
LED 1 LED 2
LED 3
/ /
Communication
error between
indoor and outdoor
units
• Check the connection wire between the
indoor and outdoor units (whether the
power cable or communication cable is
crossed or not).
Error on indoor
temperature sensor
• Check the connection of the connector.
,
Error on indoor
heat exchanger
• Check the connection of the connector.
Error on indoor fan
motor
• Check the connection of the connector.
• Remove foreign substance. (Check for the
cause that restrains motor.)
display and
all LEDs blink.
EEPROM/Option
error
• Re-set options.
,
Refrigerant flow
blocking error
• Check if the stop valve is completely
open.
• Check if there is any blockage in the
refrigerant pipe which connects the
indoor and outdoor units.
• Check for refrigerant leak.
Lack of refrigerant
(for inverter models
only)
• Check if a sufficient amount of refrigerant
is additionally charged for the pipe
longer than specified in piping codes and
standards.
• Check for refrigerant leak between valve
and pipe connection.
This LED pattern
appears when an
error occurs on the
outdoor unit.
: Off, : Blinking, : On
