Samsung AR18MQJSBWKXMG Error indicator, Error Measures for the installer to take Display, Indoor

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
								units (whether the power cable or
							indoor and
								communication cable is crossed or
							outdoor units	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.
								• Check for refrigerant leak.
							Lack of refrigerant	• Check if a sufficient amount of
							(for inverter	refrigerant is additionally charged
		❈ This LED pattern						for the pipe longer than specified in
							models only)
								piping codes and standards.
			appears when an					• Check for refrigerant leak between
			error occurs on the
								valve and pipe connection.
			outdoor unit.

❈ : Off, : Blinking, : On

Installation

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