Haier R410A 用户手册

Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

• This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.
• Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of

outdoor unit control board as shown in the table.

• If more than two troubles occur simultaneously, lower number of error code is first displayed.
• After error occurrence, if error is released, error LED is also released simultaneously.

1st,2nd LED of 7-segment indicates error number, 3rd LED indicates unit number.
Ex) 211 : No.21 error of master unit

213 : No.21 error of slave2
011 

→ 051 : No.105 error of master unit

Air temperature sensor of indoor unit is open or short

Inlet pipe temperature sensor of indoor unit is open or short

Failing to receive wired remote controller signal in indoor unit PCB

Malfunction of drain pump

Failing to receive outdoor unit signal in indoor unit PCB

Outlet pipe temperature sensor of indoor unit is open or short

Operation mode between indoor unit and outdoor unit is different

In case when the serial number marked on 
EEPROM of Indoor unit is 0 or FFFFFF

Disconnecting  the fan motor connector/Failure of indoor fan motor
lock

When the addressing signal doesn't respond for 3mins. suddenly,
while the indoor unit gets the calling signal from the outdoor unit, 

Air temperature sensor of indoor unit

Inlet pipe temperature sensor of indoor unit

Transmission error : wired remote controller
↔ indoor unit
Drain pump

Transmission error : outdoor unit 

↔ indoor

unit

Outlet pipe temperature sensor of indoor unit

Different operation mode

Serial No.

Poor fan motor  operation

Transmission  error: indoor unit 

→ main PCB

of outdoor.