Haier HBU-48CH03, HBU-48HJ03 Failure code list, PCB flash times, High pressure malfunction

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When Trouble Happens

Failure code list

Failure code

Power lamp flash

on wired

times/LED on

controller

PCB flash times

E0

10

E1

1

E2

2

E3

3

failure description

Reasons

Fault in drain system

Float switch is open

Indoor ambient

Sensor broken down or short circuit for

temp. sensor failure

more than 2m continuously

Indoor pipe

Sensor broken down or short circuit for more

temp. sensor failure

than 2m continuously

Outdoor ambient

Sensor broken down or short circuit for more

temp. sensor failure

than 2m continuously

E44

E55

6

E6

Outdoor pipe or discharge temp . sensor failure

overcurrent

High pressure malfunction

Sensor broken down or short circuit for more than 2m continuously or outdoor discharge temp. over 120 for 3 times continuously in 30m

Indicate phase failure when been electrified for the first time, indicate overcurrent protection during working procedure

Outdoor high pressure switch acts

16

E88

E99

Low pressure malfunction

C o m m u n i c a t i o n failure between indoor PCB and panel or wired controller

C o m m u n i c a t i o n failure between indoor and outdoor unit

Outdoor low pressure switch acts or the proctector on the top of compressor breaks for protection

Communication abnormal for more than 4m continuously

Communication between indoor PCB and outdoor PCB open for more than 4m

E7

13

Temperature cutoff

System failure. System cooling or heating

protection

function abnormal

 

 

12

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Contents Cassette Type AIR Conditioner Contents Disposal of the old air conditioner Machine is adaptive in following situation ModelSafety cautions Dont dismantle the outlet of the outdoor unit No inflammable spray fluidLocation Please call dealer to install the air-conditionerWiring Operating noiseSuction grill Air filter Introduction to Spare PartsAir ourlet blade Clean outlet and shell MaintenanceClean air filter Pre-season Care Seasonal ReservePost-season Care Hua Trouble ShootingFollowings are not malfunction Unit fails to start Insufficient cooling When Trouble HappensInsufficient cooling or heating High pressure malfunction Failure code listPCB flash times Low pressure malfunctionCustomer Need-to-know Using DirectionsCustomer Need-to-know Installation Procedure Installation toolsMeanings of Warning and Cautions Selection of installation place Unitmm690 Preparation for the installationHBU-28CH03 HBU-36HH03 HBU-42CH03 HBU-42CI03 HBU-42HI03 HBU-48CH03Installation example Installation of indoor unitAfter installation on the ceiling Fix the paper pattern Installation of water drainage pipe Wiring diagram After wiringWhen wiring is not complete Remove air inlet grill from ornament panel Connecting of unit Take HBU-28HH03 For examplePrepare ornament panel Handling of ornament panel Install ornament panel on indoor unit Mounting on high ceilingInstallation of inlet grill

HBU-42CI03, HBU-28CH03, HBU-28HH03, HBU-48CH03, HBU-36HH03 specifications

Haier has cemented its position as a leader in the HVAC industry with its innovative and high-performing products. Among its flagship offerings are the Haier HBU-48CK03, HBU-28CH03, HBU-48CH03, HBU-42CH03, and HBU-28HH03 models. Each of these units incorporates advanced technologies and features designed to meet varying demands in both commercial and residential settings.

The HBU-48CK03 stands out with a powerful cooling capacity of 48,000 BTUs, making it ideal for larger spaces. This model excels in energy efficiency, boasting a high EER rating, which means significant savings on electricity bills. The HBU-48CK03 is equipped with Smart Fan Technology that automatically adjusts fan speed based on cooling load, ensuring optimal comfort while minimizing noise levels.

Moving on to the HBU-28CH03, this model caters to smaller spaces with a cooling capacity of 28,000 BTUs. It incorporates a compact design, making it suitable for apartments and smaller commercial areas. The inverter technology in this unit ensures consistent temperature control and significantly reduces energy consumption. With multiple operating modes including cooling, heating, dehumidification, and fan-only, versatility is a key feature of the HBU-28CH03.

The HBU-48CH03 is another robust option featuring a balance of power and efficiency. With a similar capacity to the HBU-48CK03, it includes enhanced airflow design, allowing for better air distribution throughout the room. The model also features a self-diagnostic function, simplifying maintenance and troubleshooting.

The HBU-42CH03 offers a middle ground with a cooling capacity of 42,000 BTUs. This model is equipped with advanced filtration systems that improve indoor air quality by reducing allergens and pollutants. Its quiet operation technology ensures that the unit runs silently, making it perfect for environments where noise is a concern.

Lastly, the HBU-28HH03 is tailored for those who prioritize heating as much as cooling. This unit combines heat pump technology with efficient cooling capabilities, making it suitable for year-round use. The high-performance compressor enhances system reliability and longevity.

All these models showcase Haier’s commitment to developing HVAC solutions that not only provide comfort but also focus on energy efficiency and user convenience. With features like remote control, programmable timers, and comprehensive warranties, Haier offers great value for homeowners and business operators alike.