Gree Dettson LOMO 19 Installation Manual page 65

No. Malfunction Name
Malfunction of detecting
47
plate(WIFI )
Refrigerant recovery
48
mode
Undefined outdoor unit
49
error
62
Display Method of
Indoor Unit
Dual-8 Code
Display
Loads operate normally, while the unit can't be
JF
normally controlled by APP.
Fo
Cool: compressor and outdoor fan stops
operation, while indoor fan operates; Heat:
oE
compressor, outdoor fan and indoor fan stop
operation.
A/C status
1. Main board of indoor unit is damaged;
2. Detection board is damaged;
3. The connection between indoor unit and
detection board is not good;
Refrigerant recovery. The Serviceman operates
it for maintenance.
1. Outdoor ambient temperature exceeds the
operation range of unit (eg: less than-20
more than 60
heating);
2. Failure startup of compressor?
3. Are wires of compressor not connected
tightly?
4. Is compressor damaged?
5. Is main board damaged?
Service Manual
Possible Causes
o
C or
o C for cooling; more than 30 o C for
Installation and Maintenance