Maintenance; Error Code List - Gree GEH09AA-K6DNA1F Service Manual

9. Maintenance

9.1 Error Code List

Display Method of
Indoor Unit
Malfunction
Dual-8
No.
Name
Display
High
pressure
1
protection of
system
Low pressure
2 protection of
system
High
discharge
3 temperature
protection of
compressor
Overcurrent
4
protection
Communi-
5 cation
Malfunction
High
temperature
6
resistant
protection
EEPROM
7
malfunction
Limit/
decrease
frequency
8
due to high
temperature
of module
Malfunction
9 protection of
jumper cap
40
A/C status
Code
During cooling and drying
operation, except indoor
fan operates, all loads stop
E1
operation.
During heating operation, the
complete unit stops.
The Dual-8 Code Display will
E3 show E3 until the low pressure
switch stop operation.
During cooling and drying
operation, compressor and
E4 outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.
During cooling and drying
operation, compressor and
E5 outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.
During cooling operation,
compressor stops while
E6 indoor fan motor operates.
During heating operation, the
complete unit stops.
During cooling operation:
compressor will stop while
E8 indoor fan will operate.
During heating operation, the
complete unit stops.
During cooling and drying
operation, compressor will stop
EE while indoor fan will operate;
During heating operation, the
complete unit will stop
All loads operate normally,
EU while
operation frequency for
compressor is decreased
Wireless remote receiver and
C5 button are effective, but can
not dispose the related
command
Possible Causes
Possible reasons:
1. Refrigerant was superabundant;
2. Poor heat exchange (including
filth blockage of heat exchanger
and bad radiating environment );
Ambient temperature is too high.
1.Low-pressure protection
2.Low-pressure protection of
system
3.Low-pressure protection of
compressor
Please refer to the malfunction
analysis (discharge protection,
overload).
1. Supply voltage is unstable;
2. Supply voltage is too low and
load is too high;
3. Evaporator is dirty.
Refer to the corresponding
malfunction analysis.
Refer to the malfunction analysis
(overload, high temperature
resistant).
Replace outdoor control panel AP1
Discharging after the complete unit
is de-energized for 20mins, check
whether the thermal grease on
IPM Module of outdoor control
panel AP1 is sufficient and whether
the radiator is inserted tightly.
If its no use, please replace control
panel AP1.
1. No jumper cap insert on
mainboard.
2. Incorrect insert of jumper cap.
3. Jumper cap damaged.
4. Abnormal detecting circuit of
mainboard.
Service Manual
Installation and Maintenance