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 error

• Check the connection wire between the

 

 

 

 

 

 

between indoor and

indoor and outdoor units (whether the

 

 

 

 

 

 

outdoor units

power cable or communication cable is

 

 

 

 

 

 

 

crossed or not).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error on indoor

• Check the connection of the connector.

 

 

 

 

 

 

temperature sensor

 

 

 

 

 

 

 

 

 

,

 

 

 

 

 

Error on indoor heat

• Check the connection of the connector.

 

 

 

 

 

exchanger

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error on indoor fan

• Check the connection of the connector.

 

 

 

 

 

 

motor

• Remove foreign substance. (Check for the

 

 

 

 

 

 

 

cause that restrains motor.)

 

 

 

 

 

 

 

 

display and

 

 

 

 

 

EEPROM/Option

• Re-set options.

all LEDs blink.

 

 

 

 

 

error

 

 

 

 

 

 

 

 

 

,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refrigerant flow

• Check if the stop valve is completely open.

 

 

 

 

 

 

blocking error

• 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 refrigerant

 

 

 

 

 

 

(for inverter models

is additionally charged for the pipe

 

 

❈ This LED pattern

only)

longer than specified in piping codes and

 

 

 

standards.

 

 

appears when an

 

• Check for refrigerant leak between valve

 

 

error occurs on the

 

 

 

 

and pipe connection.

 

 

outdoor unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

❈ : Off, : Blinking, : On

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2/23/2017 1:09:17 PM