[116]
communication abnormal between transducer(inverter module board) and control PCB
yes
no
no
yes
no
replace main control board
detecting circuit on inverter
board broken down, replace
inverter module board
yes
if inverter module
board is abnormal
check if wire between
control PCB and inverter board
is abnormal
solve the failures due to
relative information
adjust communication wire
check if communication
circuit of main control PCB is
abnormal(if signal LED
flashes abnormally)
[117]
transducer over current(software protection)
yes
no
no
no
yes
yes
no
correct the wiring due to diagram
yes
check if voltage of power
supply is normal
replace compressor
if power module is normal
improve power supply circuit
check if wire of electric
box is correct
replace power module
if compressor is
normal(compressor coil
resistor, insulation)
compressor load too much,
check the reason
93