Self-diagnosis function

Self-diagnosis function

Self-Diagnosis Function

Error Indicator

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.

Error Display

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

 

Display

Title

Cause of Error

 

 

 

 

 

 

 

0

1

-

Air temperature sensor of indoor unit

Air temperature sensor of indoor unit is open or short

 

 

 

 

 

 

 

0

2

-

Inlet pipe temperature sensor of indoor unit

Inlet pipe temperature sensor of indoor unit is open or short

 

 

 

 

 

 

 

0

3

-

Transmission error : wired remote controller

Failing to receive wired remote controller signal in indoor unit PCB

error

indoor unit

 

 

 

 

 

 

0

4

-

Drain pump

Malfunction of drain pump

 

 

 

 

 

 

 

 

Transmission error : outdoor unit indoor

Failing to receive outdoor unit signal in indoor unit PCB

related

0

5

-

unit

 

 

 

 

 

 

 

 

 

 

0

6

-

Outlet pipe temperature sensor of indoor unit

Outlet pipe temperature sensor of indoor unit is open or short

unit

 

 

 

 

 

0

7

-

Different operation mode

Operation mode between indoor unit and outdoor unit is different

 

 

 

 

 

 

 

 

Serial No.

In case when the serial number marked on

Indoor

0

9

-

 

EEPROM of Indoor unit is 0 or FFFFFF

 

 

 

 

 

 

 

 

 

1

0

-

Poor fan motor operation

Disconnecting the fan motor connector/Failure of indoor fan motor

 

 

 

lock

 

 

 

 

 

 

 

 

 

 

 

 

1

1

-

Transmission error: indoor unit main PCB

When the addressing signal doesn't respond for 3mins. suddenly,

 

of outdoor.

while the indoor unit gets the calling signal from the outdoor unit,

 

 

 

 

 

 

 

 

 

 

Copyright ©2008 LG Electronics. Inc. All right reserved.

- 99 -

Only for training and service purposes

LGE Internal Use Only

 

Page 99
Image 99
Haier R410A service manual Self-diagnosis function, Error Indicator, Error Display

R410A specifications

Haier R410A is a refrigerant that has gained significant attention in the HVAC industry due to its environmental benefits and efficient performance. As a hydrofluorocarbon (HFC) refrigerant, R410A is designed to replace the older R22 refrigerant, addressing environmental concerns and aligning with global initiatives to phase out ozone-depleting substances.

One of the primary features of Haier R410A is its low environmental impact. R410A has a significantly lower ozone depletion potential (ODP) compared to R22, making it a more environmentally friendly option. Additionally, it has a global warming potential (GWP) that, while still higher than natural refrigerants, is considered acceptable in terms of modern refrigerant usage and regulatory compliance.

The performance characteristics of R410A are another key point of interest. This refrigerant operates at higher pressure levels compared to R22, which allows for improved heat transfer efficiency. This results in enhanced cooling and heating capabilities, enabling HVAC systems designed for R410A to deliver superior performance in various climate conditions. The higher efficiency translates to lower energy consumption, meaning users can enjoy a comfortable indoor climate while keeping energy bills in check.

In terms of technology, Haier has integrated R410A into a range of air conditioning and refrigeration systems, showcasing the refrigerant’s compatibility with modern HVAC designs. Many of Haier’s products feature advanced inverter technology, which optimizes energy use by adjusting the compressor speed according to the cooling demand. This not only improves efficiency but also extends the lifespan of the equipment.

Moreover, Haier R410A systems are often equipped with smart technologies such as Wi-Fi connectivity and intelligent control features. These innovations allow users to monitor and control their HVAC systems remotely, promoting user convenience and energy savings.

Safety is another characteristic of R410A systems. Although R410A is non-toxic and has a very low flammability risk, it requires appropriate handling procedures due to its higher pressure. Haier adheres to rigorous safety standards in the design and manufacturing of its HVAC units, ensuring that end-users can operate their systems with peace of mind.

Overall, Haier R410A refrigerants represent a significant step forward in achieving efficient, environmentally responsible heating and cooling solutions. With their advanced technology, excellent performance, and commitment to safety, Haier's R410A systems have become a preferred choice among consumers looking for reliable HVAC solutions that also consider ecological impact.