Samsung MV Series User & Installation Manual page 50

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 LED 2
Display
,
display and
all LEDs blink.
,
 This LED pattern
appears when an
error occurs on the
outdoor unit.
: Off, : Blinking,

LED Display
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)
: 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.
English 49