Saijo Denki CVIA-80-CPF3, Service Manual

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.
No
Yes
No
Compressor 1 is set as 1
Compressor 2 is set as 2
Yes
No
Yes
Saijo denki International co.,ltd. 94
Check slave control board
Error 48
Compressor Inverter Driver
Communication Loss There is not communicate with the control board
of the compressor.
Is wiring connection between
slave board and control board
of compressor normal?
Correct connection wiring
Is jumper ID setting of
control board of
compressor normal?
Check jumper setting
Is control board of
compressor working
normal?
Check control board of compressor
Check code Check code name cause