AirStage ARXB07LALH, Service Manual

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Trouble shooting 53
Abnormal Noise
Abnormal noise is coming from Indoor Unit
(Check and correct followings)
Diagnosis method when Abnormal Noise is occurred
Abnormal noise is coming from Outdoor Unit
(Check and correct followings)
Trouble shooting 54
Water Leaking
Diagnosis method when water leak occurs Diagnosis method when water is spitting out
Attention!!
If water is leaking from the Indoor Unit that is not in
operation, there is a possibility of Indoor EEV is not
closed.
=> Check EEV (Refer to Service Parts Information)
Attention!!
If Refrigerant Noise is occurring, Check if the Indoor and
Outdoor Thermistor is wrongly installed. Check and
correct the thermistor.
OK
Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?
Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?
Check if vibration noise by loose bolt or contact noise of
piping is happening.
Is Compressor locked?
>> Check Compressor (Refer to Service Parts Information)
OK
OK
Is Main Unit installed in stable condition?
Is the installation of Air suction grille and front panel normal?
In case of Duct type : Is Static Pressure range normal?
(Refer to Data & Technical Manual)
Is Main Unit installed in stable condition?
Is Bell Mouth installed normally?
OK
Is Float Switch defective?
>> Check Float Switch (Refer to Trouble Shooting)
Is Fan rotating?
>> Check Fan Motor (Refer to Service Parts Information)
Is Drain Hose connection loose?
Is there a trap in Drain Hose?
Is Drain Hose clogged?
Is Main Unit installed in stable condition?
Is Main Unit broken or deformed at the time of
transportation or maintenance?
OK
OK
OK
Check Gas Pressure and correct it if there was a gas leak.
Is the filter clogged?
OK
MPa MPa
Forecast of Cause :
1. Abnormal installation (Indoor/Outdoor) 2. Fan failure(Indoor/Outdoor)
3. EEV failure (Indoor) 4. Compressor failure (Outdoor)
Forecast of Cause :
1. Erroneous installation 2. Drain hose failure 3. Float Switch failure
04-62
Check the refrigerant additional charging amount.
When the refrigerant is not enough, add the refrigerant.
However, the total refrigerant amount is prevented from
more than 15.7kg.