Haier AW12EH2VHA Service Manual

Haier AW12EH2VHA

140 pages

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Ductless Multi-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.

Table of Contents

Introduction ............................................................................................................... A-1

Outdoor Technical Overview ...................................................................................... B-1

Wall Mount Technical Overview ..................................................................................C-1

Compact Cassette Technical Overview ......................................................................D-1

Large Cassette Technical Overview ............................................................................ E-1

Slim Duct Technical Overview .................................................................................... F-1

Mid-Static Ducted Technical Overview .......................................................................G-1

Medium Static Ducted (Pro Series) Technical Overview ..............................................H-1

Console Technical Overview ........................................................................................ I-1

Troubleshooting & Reference ..................................................................................... J-1

Outdoor

2U18MS2VHB

3U24MS2VHB

4U36MS2VHB

Indoor

Wall Mount - Highwall

AW07EH2VHA

AW09EH2VHA

AW12EH2VHA

AW18EH2VHA

AW07LC2VHB

AW09LC2VHB

AW12LC2VHB

AW18LC2VHB

AW24LP2VHA

2’x2’ Compact Cassette

AB09SC2VHA

AB12SC2VHA

AB18SC2VHA

3’x3’ Large Cassette

AL24LP2VHA

Slim Duct

AD07SL2VHB

AD09SL2VHB

AD12SL2VHB

AD18SL2VHB

Mid-Static Ducted

USYM09UCDSA

USYM12UCDSA

USYM18UCDSA

USYM24UCDSA

Medium Static Ducted

AM24LP2VHA

Console

USYF09UCDWA

USYF12UCDWA

USYF18UCDWA

• Before troubleshooting or servicing equipment, review equipment installation guides

and conrm ALL installation requirements & specications have been met. Including,

but not limited to: wiring, clearance, ducting (where applicable), power, and line set

requirements. Correct any installation issues before continuing.

Table of Contents

Other manuals for Haier AW12EH2VHA

User Manual8 pages

Installation Manual10 pages

Questions and Answers:

E
eobrienAug 7, 2025
Why is my Haier Air Conditioner not cooling properly?
- S
  stevenherringAug 7, 2025
  Poor cooling in your Haier Air Conditioner can stem from several factors. First, check if the air filter is dirty and clean it if necessary; it should be cleaned every 2 months. Ensure that nothing is blocking the unit's air inlet or outlet. Verify that the temperature is set correctly. Make sure all doors and windows are closed to prevent warm air from entering. During cooling, block direct sunlight with curtains. Limit the number of heat sources and people in the room.
A
Adam HarrisAug 13, 2025
What is that noise coming from my Haier AW12EH2VHA?
- T
  Thomas MartinezAug 13, 2025
  The swishing or gurgling noise you hear during operation or when your Haier Air Conditioner stops is the sound of refrigerant flowing within the system. The cracking noise during operation is due to the casing expanding or shrinking because of temperature changes. Loud airflow noises are usually caused by a dirty air filter.
P
parkchristopherAug 21, 2025
Why does my Haier AW12EH2VHA Air Conditioner not restart immediately?
- P
  Paul MurphyAug 22, 2025
  If your Haier Air Conditioner doesn't restart immediately after being stopped, it's because the system needs to protect itself. When the unit is stopped, it will not restart again for 3 minutes. Similarly, if electricity is disconnected and then reconnected, the protection circuit will work for 3 minutes. Wait for 3 minutes before attempting to restart the system or after reconnecting the electricity.
A
Amber TaylorAug 29, 2025
Why can't I change the fan speed in dry mode on my Haier Air Conditioner?
- D
  Derek MillerAug 29, 2025
  In DRY mode, when the room temperature becomes lower than the set temperature by 2°F, your Haier Air Conditioner will run intermittently at LOW speed regardless of the FAN setting.

Haier AW12EH2VHA Specifications

General

Control Type	Remote Control
Cooling Capacity	12000 BTU/h
Air Flow Rate	12 m³/min
Fan Speed	3
Heating Capacity	12000 BTU/h
Weight (Indoor Unit)	9 kg
Weight (Outdoor Unit)	30 kg
Dimensions (Indoor Unit)	790 x 285 x 190 mm
Dimensions (Outdoor Unit)	30.3 x 21.7 x 11.8 inches
Air Flow (Indoor Unit)	12 m³/min

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