Pressure Difference Between High Pressure And Low Pressure Is Abnorma - Haier AU082FYCRA(HW) Service Manual

[75-0, 75-4] Pressure difference between high pressure and low pressure is abnorma

Check if high/ low pressure
sensor is connected well
Check if compressor wire is
connected normally
If wire of inverter compressor
are connected oppositely
If 4-way valve is interconnected
Measure if there is voltage U, V,
W of compressor by multimeter,
and if it is normal
Replace inverter compressor
Y
Y
Y
N
N
88
N
Re-connect
N
Correct compressor
wire
N
Correct compressor wire
Y
Replace 4-way valve
Y
Replace inverter module