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
LED 1
Display
,
display and
all LEDs blink.
,
❈ This LED pattern
: Off,
: Blinking,
❈
42 English
LED Display
LED 2
LED 3
/
Communication error
between indoor and
outdoor units
Error on indoor
temperature sensor
Error on indoor heat
exchanger
Error on indoor fan
motor
EEPROM/Option
error
Refrigerant flow
blocking error
Lack of refrigerant
(for inverter models
only)
appears when an
error occurs on the
outdoor unit.
: On
Error
Measures for the installer to take
• Check the connection wire between the
indoor and outdoor units (whether the
power cable or communication cable is
crossed or not).
• Check the connection of the connector.
• Check the connection of the connector.
• Check the connection of the connector.
• Remove foreign substance. (Check for the
cause that restrains motor.)
• Re-set options.
• 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.
• 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.