Sharp AY-X36RU Service Manual page 23

Overload and air exhaust malfunction diagnosis (AP1: the control board of the outdoor unit)
10.
Mainly detect:
● Wether the PMV is connected well or not? Is PMV damaged?
● Is refrigerant leaked?
20 minutes after the
complete unit is
powered off
Is the terminal FA for the
electronic expansion valve
connected correctly?
Y
Resistances between the first four pins
close to the terminal hole and the fifth
pin are almost the same, less than 100
ohm.
Replace the electronic
expansion valve
Is the problem fixed?
N
Replace the
control panel
AP1
Is the problem fixed?
N
Coolant leakage, refilling
the coolant
End
23
N Connect the
wires correctly
Y
Y
AY-X36RU
AE-X36RU