Flashing Led Of Indoor/Outdoor Unit And Primary Judgement - Gree GJC09AF-E6RNB3A Service Manual

Service Manual

9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement

Malfunction
Dual-8
No.
Name Code
Display
High pressure
1 protection of E1
system
Antifreezing
2 E2
protection
System block or
3 refrigerant E3
leakage
High
discharge
4 temperature E4
protection of
compressor
Overcurrent
5 E5
protection
Communication
6 E6
Malfunction
Installation and Maintenance
Display Method of Indoor Unit
Indicator Display (during
blinking, ON 0.5s and OFF
0.5s)
Operation Cool Heat
Indicator Indicator Indicator
OFF 3s
and blink
once
OFF 3S
and blink
twice
OFF 3S
and blink
3 times
OFF 3S
and blink
4 times
OFF 3S
and blink
5
times
OFF 3S
and blink
6
times
Display Method of Outdoor Unit
Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF 0.5s
Yellow Red Green
Indicator Indicator Indicator
OFF 1S
and blink
3 times
OFF 1S
and blink
9 times
OFF 1S
and blink
7 times
OFF 1S
and blink
5 times
OFF
A/C Status Possible Causes
Possible reasons:
1. Refrigerant was
During cooling and superabundant;
drying operation, 2. Poor heat
except indoor fan exchange (including
operates, all loads filth blockage of heat
stop operation. During exchanger
heating operation, the and bad radiating
complete unit stops. environment );
Ambient temperature
is too high.
During cooling and 1. Poor air-return in
drying operation, indoor unit;
compressor and 2. Fan speed is
outdoor fan stop while abnormal;
indoor fan operates. 3. Evaporator is dirty.
1.Low-pressure
The Dual-8 Code protection
Display will 2.Low-pressure
show E3 until the low protection of system
pressure 3.Low-pressure
switch stop operation. protection of
compressor
During cooling and
drying operation,
Please refer to the
compressor and
malfunction
outdoor fan stop while
analysis (discharge
indoor fan operates.
protection,
During heating
overload).
operation, all loads
stop.
During cooling and
drying operation, 1. Supply voltage is
compressor and unstable;
outdoor fan stop while 2. Supply voltage is
indoor fan operates. too low and
During heating load is too high;
operation, all loads 3. Evaporator is dirty.
stop.
During cooling
operation,compressor
stops while indoor Refer to the
fan motor operates. corresponding
During heating malfunction analysis.
operation, the
complete unit stops.
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