Samsung AR18NVPXCWK/MG manual Communication, Error between, Power cable or communication

Installation

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 between
					error between	the indoor and outdoor units (whether
					indoor and outdoor	the power cable or communication
					units	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.
						• 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

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