Specifications

88
Is heat sink
temperature
>100°C?
No
IPM Error
IPM faulty
Is IPM ok?
To replace IPM
Yes
Is current at rated
frequency ok?
Compressor faulty
Is IPM Error
persists?
Normal
To check & rectify
Heat sink condition improper
Main board faulty or wrong signal
To rectify
No
Is IPM temperature
>100°C?
Heat compound dried out
Yes
No
Yes
No
Yes
No
Yes
To rectify / replace
To replace and re-apply
Is heat compound
dried out?
IPM faulty
No
To replace IPM
Yes