Troubleshooting

The following phenomena are not troubles

 

Symptom

Cause

 

Hear the sound

When the air conditioner is started; during operation

of water flow

the compressor starts or stops; or when the unit is

 

stopped; sometimes it gives the sound of ìHua,

 

Huaî or ìGudu, Guduî. This is the sound of the

 

refrigerant circulation, not trouble.

 

Gives ìPi, Paî sound

It is caused by the hot expansion and cold shrink of

 

the plastic part.

 

Having peculiar smell

Sometimes the air sent from the indoor has peculiar smell,

 

the smell is what the cigarette smoke naturally has or caused

 

by the inner paint of the unit.

 

During operation,

During COOLING or DEHUMIDIFYING, you may see

the indoor

the unit produces whiffs of light mist. It is caused by the

unit

sudden cold indoor air blown out from the unit producing

produces mist.

condensation mist.

 

D u r i n g C O O L I N G

To prevent the frost from forming on the indoor unit heat

operation, the mode

exchanger, sometimes the unit will automatically change

changes from AUTO to

to FAN mode, but sooner it will resume to COOLING mode.

FAN.

 

 

After stopping the

Even the operation button is set on ON, within 3 minutes

unit, it can not start

after the unit stops, Cooling, Dehumidifying or Heating

immediately.

mode can not start. It is because the self-protection of the

The air conditioner

system.

Wait three

(In this 3 minutes,

does not start?

minutes

the air conditioner is in Fan mode)

 

 

During

In DEHUMIDIFYING operation, when the room

DEHUMIDIFYING, there

temperature is too low, the fan motor will automatically

is no air blown out or the

and repeatedly drop the fan speed

 

FAN SPEED can not be

 

 

 

changed.

 

 

During operation, the

Whether choosing Auto mode?

 

operation mode changes to

In Auto mode, according to room temperature, the operation

Auto.

mode will automatically change Cooling to Heating, vice

 

versa.

 

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Haier AD422BMBAA manual Troubleshooting

AD422BMBAA specifications

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