Self-diagnosis function

Error

Error Type

Error Point

 

Main Reasons

No.

 

 

 

 

 

 

 

 

 

 

 

 

Float switch is open due to

1.

Drain pump/float switch fault

 

 

 

 

 

 

rising of condensate water

2.

Improper drain pipe location, clog-

04

Drain pump error

level because of drain

 

ging of drain pipe

 

 

pump fault or drain pipe

3.

Indoor unit PCB fault

 

 

clogging

 

 

 

 

 

 

 

 

 

Error diagnosis and countermeasure flow chart

Is the drain pan filled

No

Is Float switch short

No

half with condensate

 

On measuring its

 

water? (half level of

 

 

 

resistance?

 

float switch)*

 

 

 

Yes

 

Yes

 

 

 

 

 

 

 

 

 

 

 

Replace Indoor PCB or

 

 

 

reconnect the connector

 

 

 

 

 

Replace float switch

 

 

In indoor unit PCB

Is drain pump working?

No

Does the terminal voltage No

(Sound/drain noise/

 

for drain pump has

contact etc.)

 

220V output?**

Yes

 

Yes

 

 

 

 

 

 

 

 

Replace Drain Pump

 

 

 

 

 

Replace indoor unit PCB

Drain pump blocked by

No숨

 

Check숨the숨drain숨head숨height숨

 

foreign particles?

 

and숨slope***

 

 

 

Yes

 

Checking숨float

 

 

 

 

switch

 

 

 

 

숨(Low숨position숨숨short숨숨0쒜hmo숨)

 

 

 

 

 

Remove it & clean the pump

 

 

 

 

 

 

 

 

 

* If the float goes up higher than a half of float switch then the circuit is open & the unit is stopped automatically.

float

(High숨position숨숨Open)

 

Condensate숨water

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

- 102 -

Only for training and service purposes

LGE Internal Use Only

 

Page 102
Image 102
Haier R410A service manual 102

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.