What to do if my Haier Air Conditioner has over hot protection of compressor?
If your Haier Air Conditioner is showing an over hot protection of compressor, it could be due to a serious lack of refrigerant, high ambient temperature, or blocked PMVs. Check refrigerant levels and ambient temperature.
What does it mean if my Haier Air Conditioner displays an EEPROM fault?
An EEPROM fault on your Haier Air Conditioner indicates a faulty outdoor unit PCB. The suggested solution is to replace the outdoor unit PCB.
What to do if my Haier Air Conditioner showing input overcurrent?
If your Haier Air Conditioner is showing an input overcurrent error, it may be due to an overcurrent in the system, a broken current sensor, malfunction with indoor or outdoor fan motors, a faulty PCB, wrong connection, disconnected wires, wrong address setting of indoor units, a faulty PCB, or a faulty power supply. You should inspect the current sensor and connections.
What to do if my Haier AU282XHERA Air Conditioner has system low pressure protection?
If your Haier Air Conditioner is showing a system low pressure protection error, it could be due to a disconnected or activated low pressure switch, Te being too low, faulty outdoor fan motors during heating, a faulty indoor fan motor during cooling, or a refrigerant shortage. To address this, check the low pressure switch and refrigerant levels.
General| Brand | Haier |
|---|---|
| Model | AU282XHERA |
| Category | Air Conditioner |
| Language | English |
Details for the 4-way cassette indoor unit.
Information on the convertible indoor unit.
Specifications for the console indoor unit.
Features of the duct indoor unit.
Installation and operation of the wall-mounted indoor unit.
Data and specifications for the outdoor unit.
Overview of the X Multi series product lineup.
Specifies the operational temperature limits for cooling and heating.
Highlights the main features and benefits of the product.
Technical specifications for the outdoor unit components.
Piping specifications including pipe sizes and lengths.
Dimensional drawings for AU182XFERA and AU222XFERA models.
Dimensional drawings for the AU252XGERA model.
Dimensional drawings for the AU282XHERA model.
Dimensional information for the cassette indoor unit.
Dimensional information for the convertible indoor unit.
Table of installation dimensions for ceiling concealed units.
Dimensional drawings for AD092XLERA and AD122XLERA.
Dimensional drawings for AD142XLERA and AD182XLERA.
Dimensional information for the console indoor unit.
Dimensional information for the wall-mounted indoor unit.
Data on various indoor/outdoor unit combinations and their performance.
Wiring diagram for AU18-222XFERA models.
Wiring diagram for AU25-342X*ERA models.
Wiring diagram for AU362XHERA models.
Table detailing piping length and drop limitations for installation.
Table detailing piping length and drop limitations for installation.
Table detailing piping length and drop limitations for installation.
Diagrams showing correct installation procedures for outdoor units.
Guidance on selecting appropriate pipes for refrigerant lines.
Instructions for connecting refrigerant pipes, including torque specifications.
How to install the drain-elbow for proper drainage.
Steps for cutting and flaring refrigerant pipes correctly.
Guidelines for proper drain hose installation and ensuring drainage.
Procedure for connecting the vacuum pump to the service port.
Operating the vacuum pump and checking vacuum condition.
Vacuumizing the system and checking for leaks.
Checking for gas leakage after vacuumizing.
Action to take if gas leakage is detected.
Final steps for detaching the hose and checking valves.
Ensuring proper tightening of valve caps to prevent leakage.
Repeating the process for the entire system.
Safety and general rules for electrical wiring.
Methods for connecting wires to terminals (orbicular and straight).
Correct and incorrect methods for crimping wire connections.
Connecting power and communication wires to the outdoor unit.
Connecting indoor unit wires to the terminal block and cord clamp.
Checklist of essential items to confirm before starting test run.
Steps for performing the test run of the unit.
List of tools needed for cassette type installation.
List of self-contained accessories for installation.
Guidelines for selecting the optimal installation location for the indoor unit.
Procedures for mounting the indoor unit.
Steps for installing the water drainage pipe correctly.
Important cautions regarding the water drainage lifting pipe.
Instructions for installing the ornament panel.
Piping connection diagram for AB092XCERA and AB182XCERA.
Piping connection diagram for AB142XCERA and AB182XCERA.
Table showing dimensions of connecting pipes.
Details on maximum pipe length and drop height.
Important precautions for connecting refrigerant pipes.
Method for connecting pipes and tightening nuts.
Methods for connecting wires to terminals.
How to connect solid core wiring to terminals.
How to connect strand wiring to terminals.
Securing connection cords and power cables with a cord clamp.
Two methods for setting communication addresses.
Procedure for setting addresses using the remote controller.
Procedure for setting addresses using DIP switches SW01 and SW03.
Guidelines for selecting the mounting position for the indoor unit.
Criteria for installing the indoor unit correctly.
Steps for drilling holes for piping and drain.
Options for connecting the drain hose.
Procedure for installing the drain hose.
Steps for drilling holes for piping.
Drilling holes and installing anchor bolts for mounting.
Installing mounting brackets with hardware.
Mounting the indoor unit onto the brackets.
Procedures for connecting refrigerant piping to the outdoor unit.
Steps for flaring pipe ends for connection.
Instructions on how to bend pipes without collapsing them.
Piping connection diagram for AC142XCERA and AC182XCERA.
Table showing dimensions of connecting pipes.
Details on maximum pipe length and drop height.
Important precautions for connecting refrigerant pipes.
Method for connecting pipes and tightening nuts.
How to connect solid core wiring to terminals.
How to connect strand wiring to terminals.
Securing connection cords and power cables with a cord clamp.
Steps for wiring the indoor unit, including component box removal.
Connecting power cords to the terminal block.
Specific wiring instructions for indoor units, including cable distances.
Two methods for setting communication addresses.
Procedure for setting addresses using the remote controller.
Procedure for setting addresses using DIP switches SW01 and SW03.
Steps to verify the set indoor unit addresses.
Method for setting temperature compensation in heating mode.
Guidelines for proper power supply connection and circuit protection.
Checks for outdoor unit operation, noise, and gas leakage.
Checklist of essential items to confirm before starting test run.
Checklist for indoor unit operation during test run.
Mounting the left cover plate of the indoor unit.
Mounting the intake grill onto the indoor unit.
List of tools and preparations needed for duct type installation.
List of self-contained accessories for installation.
Guidelines for selecting the optimal installation location for the indoor unit.
Step-by-step procedure for installing the duct type unit.
Instructions for installing the air discharge duct.
Instructions for installing the air return duct.
Methods for insulating air supply and return ducts.
Process for hanging the indoor unit using suspension screws.
Requirements for drain pipe installation and insulation.
Specifications for pipes and insulation materials.
Details on using the hose for pipe adjustment.
Checking for leaks during trial run.
Parameters for allowable pipe length and drop.
Information on supplementary refrigerant and its addition.
Procedures for cutting and expanding pipes.
Piping connection diagram for AD092XLERA/AD122XLERA.
Piping connection diagram for AD142XLERA/AD182XLERA.
Specifications for pipe expansion.
Requirement for using double spanners for pipe connection.
Setting addresses using DIP switches SW01 and SW03.
Checking installation and preparing for trial operation.
Checklist for verifying installation quality.
Steps for conducting trial operation.
Methods for connecting wires to terminals (ring and straight).
Method for crimping connecting lines.
Specific wiring instructions for indoor units, including cable distances.
Steps and considerations for installing the indoor unit.
Guidelines for selecting the optimal installation location.
List of tools required for console type installation.
Determining the correct position for the wall hole.
Procedure for drilling the wall hole.
Schematic and dimensional details for piping connection.
Precautions for connecting refrigerant pipes.
Steps for connecting pipes and tightening nuts.
Routing and arranging piping and drain hoses.
Guidelines for arranging the drain hose correctly.
Process for connecting electrical wires.
Method for connecting loop terminals.
Method for connecting straight terminals.
Applying capping clips to wires.
Requirements for power supply and electrical safety.
Steps for cutting and flaring pipes.
Items to check during installation inspection and test run.
Wiring diagram for indoor units.
Two methods for setting communication addresses.
Procedure for setting addresses using the remote controller.
Procedure for setting addresses using DIP switches SW01 and SW02.
Steps to verify the set indoor unit addresses.
Important safety precautions before installation.
List of tools and preparations needed for wall-mounted installation.
List of self-contained accessories for installation.
Guidelines for selecting the optimal installation location.
Methods for cutting and expanding pipes.
Steps for fixing the mounting plate.
Making wall holes and fitting the piping hole cover.
Guidance on routing pipes in different directions.
Setting indoor unit communication addresses.
Steps to verify the set indoor unit addresses.
Checking installation and preparing for trial operation.
Checklist for verifying installation quality.
Procedure for conducting the trial operation.
Photo of the outdoor unit's PCB with component labels.
Wiring diagram for the outdoor unit.
Wiring diagram for the AU252XGERA outdoor unit.
Wiring diagram for AU282XHERA and AU342XHERA outdoor units.
Wiring diagram for the AU362XHERA outdoor unit.
Detailed definition of SW01 dip switch functions.
Detailed definition of SW02 dip switch functions.
Detailed definition of SW03 dip switch functions.
General electrical PCB functions.
Function for selecting the fan motor type.
Definition of SW5 dip switch settings for failure indication.
Refrigerant piping system diagram.
Initialization procedure for the Electronic Expansion Valve (EEV).
Limitations on the open angle of the EEV.
Control for standard open angle of the EEV.
Modifying EEV angle for high discharge temperature.
Control logic for the 4-way valve during heating.
Control logic for the electric heater.
Control logic for the liquid spray valve SV2.
Control logic for defrosting in heating mode.
Flowchart for defrosting operation.
Frequency control for compressor when discharging temperature is too high.
Frequency control during over current protection.
High pressure protection measures and control.
Low pressure protection measures and control.
Reasons for continued low pressure checks.
Confirming cooling mode operation.
Confirming heating mode operation.
Photo of the AB, AD indoor unit PCB.
Wiring diagram for AB*XCERA, AB, AD models.
Wiring diagram for AD***XLERA models.
Photo of the AC142-182XCERA indoor unit PCB.
Wiring diagram for the AC142-182XCERA indoor unit.
Detailed definitions of SW01, SW02, SW03 dip switch functions.
Detailed definition of SW01 dip switch functions.
Detailed definition of SW02 dip switch functions.
Detailed definition of SW03 dip switch functions.
Definitions of sensor symbols used in diagrams.
Conditions and operation for dry mode.
How the indoor fan motor operates.
Logic for auto mode operation.
How the system handles abnormal operations.
Control logic to prevent cold air during heating.
Fan motor control during defrosting.
Operation to blow remaining heat after shutdown.
Control of the swing motor.
Control logic for the water pump.
Procedure for compulsory defrosting.
Steps for conducting trial operation.
How the timer operation works.
Functionality of the sleep mode.
Operation of the healthy negative ion function.
Functionality of the auto-restart feature.
Functionality of the passive contact for control.
Procedure for setting the indoor unit number.
Method for setting temperature compensation.
Protection mechanism against evaporator freezing.
Overload protection in heating mode.
Photo of the AF092-122XCERA indoor unit PCB.
Wiring diagram for the AF092-122XCERA indoor unit.
Detailed definition of SW01 dip switch functions.
Detailed definition of SW02 dip switch functions.
General electrical PCB functions.
Comparison of console and cassette PCB functions.
Function for selecting the fan motor type.
Photo of the AS***XVERA indoor unit PCB.
Wiring diagram for AS07/09/122XVERA models.
Wiring diagram for AS182XVERA model.
SW01 dip switch settings and functions.
SW02 dip switch settings and functions.
Default SW01/SW02 settings for AS122.
Description of cooling operation.
Description of heating operation.
Description of dry operation.
Fan operation.
Logic for auto mode operation.
System behavior during abnormal mode conversion.
Control to prevent cold air during heating.
Fan motor behavior during defrosting.
Indoor motor state after defrosting.
Protection against evaporator freezing.
Overload protection in heating mode.
Timer operation details.
Sleep function details.
Procedure for setting the indoor unit number.
Method for setting temperature compensation.
Diagnostic codes and troubleshooting for specific models.
Diagnostic codes and troubleshooting for AB*XCERA, AC*XCERA models.
Diagnostic codes and troubleshooting for AD*XLERA models.
Failure codes and possible reasons for AD*XLERA.
Diagnostic codes for AF*XCERA models.
Diagnostic codes for AS*XVERA models.
Troubleshooting steps for no display on the operation panel.
Troubleshooting steps for sensor failures.
Troubleshooting communication failures between units.
Troubleshooting EEPROM data errors on the indoor PCB.
Troubleshooting repeated indoor unit numbers.
Troubleshooting indoor fan motor failures.
Troubleshooting outdoor unit failures based on indicator lamps.
Troubleshooting outdoor unit sensor failure alarms.
Troubleshooting AC current over current protection and compressor issues.
Troubleshooting high pressure failures.
Troubleshooting low pressure switch failures.
Information on using the X-Multi assistant software for diagnosis.
Cooling capacity curves for AU182XFERA.
Heating capacity curves for AU182XFERA.
Cooling capacity curves for AU222XFERA.
Heating capacity curves for AU222XFERA.
Cooling capacity curves for AU252XGERA.
Heating capacity curves for AU252XGERA.
Cooling capacity curves for AU282XHERA.
Heating capacity curves for AU282XHERA.
Cooling capacity curves for AU342XHERA.
Heating capacity curves for AU342XHERA.
Cooling capacity curves for AU362XHERA.
Heating capacity curves for AU362XHERA.
Air velocity and temperature distribution for AB092-182XCERA.
Air velocity distribution in cooling mode.
Temperature distribution in cooling mode.
Air velocity distribution in heating mode.
Temperature distribution in heating mode.
Information regarding grounding.
Air velocity distribution in cooling mode.
Temperature distribution in cooling mode.
Air velocity distribution in heating mode.
Temperature distribution in heating mode.
Air velocity distribution in cooling mode.
Temperature distribution in cooling mode.
Air velocity distribution in heating mode.
Temperature distribution in heating mode.
Air velocity distribution in cooling mode.
Temperature distribution in cooling mode.
Air velocity distribution in heating mode.
Temperature distribution in heating mode.
Air velocity distribution for center louver.
Air velocity distribution for right/left louvers.
Air velocity distribution for center louver.
Air velocity distribution for vertical louver.
Airflow vs. static pressure for AD092XLERA/AD122XLERA.
Airflow vs. static pressure for AD142XLERA/AD182XLERA.
To Next Page
