Gree Livo GEN3 LIVV30HP230V1A Service & Parts Manual page 44

Display Method of Indoor Unit
Indicator Display (during
Malfunction
blinking, ON 0.5s and OFF
Dual-8
NO.
Name
0.5s)
Code
Display
Operation
Indicator
Malfunction of
phase current
44 detection U1
circuit for
compressor
Malfunction of
voltage
45 U3
dropping for
DC bus-bar
Malfunction
of complete
46 U5
units current
detection
The four-way
47 valve is U7
abnormal
Zero-
OFF 3S
crossing
48 U9 and blink
malfunction of
18 times
outdoor unit
Defrosting
49
A/C status
Cool Heating
Indicator Indicator
During cooling and drying
OFF 3S operation, compressor will stop
and blink while indoor fan will operate;
13 times During heating operation, the
complete unit will stop
During cooling and drying
operation, compressor will stop
OFF 3S
and blink while indoor fan will operate;
20 times
During heating operation, the
complete unit will stop
During cooling and drying
operation, the compressor will
stop while indoor fan will
OFF 3S
and blink operate;
13 times
During heating operating,
the complete unit will stop
operation.
If this malfunction occurs
OFF 3S
during
and blink
heating operation, the complete
20 times
unit will stop operation.
During cooling operation,
compressor will stop while
indoor fan will operate; during
heating,the complete unit will
stop operation.
once
heating
(during
mode. Compressor will
blinking,
operate
ON 10s
and OFF while indoor fan will stop
Possible Causes
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.
1.Supply voltage is lower than
AC175V;
2.Wiring terminal 4V is loosened or
broken;
3.4V is damaged, please replace
4V.
Replace outdoor control panel AP1
Its the normal state
41