Haier AW12ES2VHB User Manual

Ductless Split Heat Pump
Service Manual
Design may vary by model number.
• Please read this manual before using the heat pump.
• Keep this user manual for future reference.
PAGE 1
Safety Precautions/Introduction .................................................................................................3
Outdoor Unit Controls and Components ..................................................................................... 7
Indoor Unit Controls and Components ......................................................................................15
Sequence Of Operation ............................................................................................................. 21
Error Codes and Problem Solving ..............................................................................................29
Reference Information ..............................................................................................................43
Table of Contents
Indoor
AW09ES2VHB
AW12ES2VHB
AW15ES2VHB
AW18ES2VHB
AW24ES2VHB
Outdoor
1U09AP2VHA
1U12AP2VHA
1U15AP2VHA
1U18AP2VHA
1U24AP2VHA

Haier AW12ES2VHB Specifications

General

Refrigerant	R410A
Power Supply	220-240V, 50Hz
Cooling Capacity	12000 BTU
Type	Split Air Conditioner
Operating Temperature (Cooling)	18°C to 43°C

Summary

Introduction and Safety

Safety Precautions and Warnings

Details critical safety warnings, cautions, and symbols for installation and operation.

Sequence of Operation

System Power and Cool Mode Operation

Details system power supply and the sequence of operation for cooling mode.

Heat Mode Operation

Explains heating mode operation, including cold air proofing and auto compensation.

Auto and Dry Mode Operation

Defrost Cycle and Protection Functions

Details defrost procedures and various system protection mechanisms.

Error Codes and Troubleshooting

Troubleshooting: Indoor and Outdoor Unit Error Codes

Lists and explains error codes displayed on indoor and outdoor units for diagnostics.

Troubleshooting: Specific Error Codes

Troubleshooting steps for common error codes like E14 and fan motor malfunctions.

Troubleshooting: IPM Protection and Compressor Issues

Troubleshooting IPM protection, compressor over-current, and related faults.

Troubleshooting: Communication and Power Supply Faults

Addresses communication faults and issues with power supply voltage.

Troubleshooting: Overheat, Synchronism, and Overload Issues

Troubleshooting: Component Testing and Tips