Specifications

No
LED on main board normal, but no output.
Incorrect output condition
Is output
condition ok?
To check & rectify
Yes
Is load ok?
Incorrect load. (exam: air trap )
Is Main board ‘s
fuse ok?
Fuse blown
To check & rectify
To replace fuse
No
Main board faulty
No
Yes
Yes
To replace Main board
Yes
Other functions normal but compressor not functioning
Incorrect operating condition
* Is fuse in DC
loop ok?
To check & rectify
Yes
Is IPM ok?
IPM faulty
Is compressor ok?
Compressor failure
To replace IPM
To replace compressor
No
Fuse blown
No
No
Yes
To replace fuse
* Faulty fuse should be replaced after the confirmation of IPM & compressor.
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