Samsung AR18MRFNEWKXMG Error indicator, Outdoor units, Not, Blocking error Open, Models only

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

50English