Gree GDN20AX-K4EBA1A - Freon-lacking Protection; Overload Protection

No.
Malfunction
Name
Display
Code
Unit's
Condition
Possible Causes
Display
Window
4
Freon-lacking
protection
F0
The compr-
essor stops;
the fan mo-
tor keeps on
running.
● Refrigerant is leaking.
● System is blocked
5
Overload
protection
H3
● Ambient operation condition is
bad.
● The evaporator and condenser
are blocked with filth.
● The system is abnormal.
16