SERVICE PARTS INFORMATION 1
Compressor
Does not start up
Diagnosis method of Compressor (If Outdoor Unit 7 segment LED displays Error, refer to Trouble shooting )
Replace Compressor
Is any Indoor unit in operation?
* If it is operated right after stopping
operation, Start-up protection
( 3min -
max.6min) by differential pressure is
kicked on.
Stops soon after starting up
Abnormal noise
Check power supply voltage,open fuse.
Is there open or loose connection cable?
Check power supply voltage,open fuse.
Is there open or loose connection cable?
In case of inverter compressor, check Filter PCB, Inverter PCB,
connection of Compressor, and winding resistance.
(Refer to the next page).
>> If there is no failure, the defect of Compressor can be
considered. (Compression part broken or valve defective.)
In case of inverter compressor, check
Filter PCB, Inverter PCB, connection of
Compressor, and winding resistance
(Refer to the next page).
>> If there is no failure, the defect of
Compressor is considered (Locked
compressor due to clogged dirt or
less oil)
Replace Compressor
Check if refrigerant is leaking or
amount of additional refrigerant is
insufficient.
(Repair the leak and Recharge
refrigerant)
Replace Compressor
Check power supply voltage,
open fuse.
Is there open or loose
connection cable?
Defective Compressor
can be considered.
(due to inside dirt clogging
or broken component)
Are all of the 3-way valves open?
(Low pressure is too low or
High pressure is too high.)
Check if Strainers are clogged.
(Strainers before and after EEV1, 2)
4-5 SERVICE PARTS INFORMATION
If it is suspected of lack of oil,
we recommend also replacing
OIL RETURN VALVE A ASSY(P/N 9378745032)
together with Compressor.
Note
04-95
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