Low Pressure Too Low And Compression Ratio Too High - Haier AU082FYCRA(HW) Service Manual

[39-0, 39-1] Low pressure too low and compression ratio too high

If actual pressure is in
conformance with the measured
data by sensor
Check if stop valve is open fully
Check if system is lack of
refrigerant
Check if terminal of electronic
expansion valve coil is fixed well
Check if piping system is
clogged
Y
Y
N
Y
80
N
Replace pressure sensor
N
Open stop valve
Y
Recharge refrigerant
N
Re-connect the terminals
Y
Clear the piping