Gree GWH18YD-K6DNA2A Service Manual page 60

Service Manual
Malfunction indicator of outdoor unit
Malfunction
Overload
Air exhaust
check points:
electronic expansion valve
overload protector
the air exhaust temperature sensor damaged
Installation and Maintenance
D5 D6 D16 D30
the electronic expansion valve
20 minutes after
the unit is
powered off
Is the overload protector SAT
connected well?
Check if the resistance
of overload protector is less than 1000ohm
in ambient temp.
Is the terminal FA of
the electronic expansion valve connected
N
correctly?
Check if the coil of electronic expansion
valve is installed correctly on the valve
Replace the
Check if the electronic expansion
overload
valve is blocked
protector SAT
If the fault is eliminated?
Check if the refrigerant is leaked,
if yes, recharge refrigerant
If the fault is eliminated?
Check if the air exhaust
temperature sensor is normal according to
the Resistance Table
Replace the outdoor
control panel
Fault with outdoor unit)
Y
Y
N
Y
Y
N
Y
N
Replace the air
N
exhaust temp. sensor
Y
End
N
Connect the wires
correctly according
to wiring diagram
57