Phase Missing; Variable Compressor Overload (Comp 1 Overload) - Acson A5ACV 30 CR User Manual

Phase missing

Is voltage
between R,S,T
415VAC±20%
Yes
Is J-RST on Main
board
415VAC±20%?
No
Disconnect power,
remove J-RST, is
voltage of socket
415VAC±20%?
No

Variable compressor overload (Comp 1 overload)

Restart, Set freq.
with handset.
Check current, is
it ok?
No
No
Incorrect incoming supply
Yes
Main board faulty
Yes
Main board faulty
EMI filter faulty
Yes
Compressor current & circuit is ok
Main board/compressor faulty
87
To check & rectify
To replace Main board
To replace Main board
To check & replace EMI filter
To check & replace