GREE ELECTRIC GWH07AGA-K6DNA1A/O Service Manual page 80

Service Manual
Malfunction of phase
current detection
circuit for compressor
Malfunction of voltage
dropping for DC
busbar
Malfunction of
complete units current
detection
Cold air
prevention
protection
Refrigerant
recovery
mode
Undefined
outdoor unit
error
Malfunction of
detecting plate(WIFI )
Installation and Maintenance
During cooling and drying operation,
compressor will stop while indoor fan will
U1 operate;
During heating operation, the complete
unit will stop
During cooling and drying operation,
compressor will stop while indoor fan will
U3 operate;
During heating operation, the complete
unit will stop
During cooling and drying operation, the
compressor will stop while indoor fan will
U5 operate;
During heating operating, the complete
unit will stop operation.
E9
Fo
Cool: compressor and outdoor fan stops
operation, while indoor fan operates;
oE
Heat: compressor, outdoor fan and indoor
fan stop operation.
Loads operate normally, while the unit
JF
can't be normally controlled by APP.
Replace outdoor control panel AP1
Supply voltage is unstable
Theres circuit malfunction on outdoor units control panel
AP1, please replace the outdoor units control panel AP1.
Not the error code. It's the status code for the operation.
Refrigerant recovery. The Serviceman operates it for
maintenance.
1. Outdoor ambient temperature exceeds the operation range
o
of unit (eg: less than-20 C or more than 60
o
more than 30 C for heating);
2. Failure startup of compressor?
3. Are wires of compressor not connected tightly?
4. Is compressor damaged?
5. Is main board damaged?
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;
o
C for cooling;
77