33
Battery
disconnection
alarm
E20 Battery switch is not turned on
or wire fault
Alarm light flickers
/
/
Reverse
connection
alarm of battery
anode and
cathode
E21
Anode and cathode of
the battery are connected
reversely
Alarm light flickers
Long buzzer
sound alarm
/
Low battery
alarm
E22
Low battery
Alarm light flickers
/
/
Control sensor
fault alarm
E10
Control sensor fault
The alarm light flickers and
the digital tube alternately
displays the temperature
and fault code.
Makes
intermittent
alarm sound
Start up
Door ajar alarm E40
The door opening signal is
detected for 5 minutes
Alarm light and door
opening indicator light
flickers
Makes
intermittent
alarm sound
Start up
Upper sensor
fault alarm
E14
Upper sensor fault
The alarm light flickers and
the digital tube alternately
displays the temperature
and fault code.
Makes
intermittent
alarm sound
Start up
Lower sensor
fault alarm
E15
Lower sensor fault
The alarm light flickers and
the digital tube alternately
displays the temperature
and fault code.
Makes
intermittent
alarm sound
Start up
Ambient
temperature
and humidity
sensor fault
alarm
E12
Ambient temperature and
humidity sensor fault
The alarm light flickers and
the digital tube alternately
displays the temperature
and fault code.
Makes
intermittent
alarm sound
Start up
Condenser
sensor fault
alarm
E13
Condenser sensor fault
Alarm light flickers
/
/
Defrosting
sensor fault
alarm
E11
Defrosting sensor fault
Alarm light flickers
/
/
Hot condenser
fault alarm
E50
The condenser is blocked by
foreign matters or the ambient
temperature is too high,
leading to that the condenser
temperature is higher than the
set value.
Alarm light and dirty
condenser indicator light
flickers
Makes
intermittent
alarm sound
/
High ambient
temperature
fault
E02
The temperature of the
ambient temperature sensor
is higher than the set value
Alarm light flickers
Makes
intermittent
alarm sound
/
High defrosting
sensor
temperature
alarm
E05
After 60 minutes of startup, the
defrosting sensor temperature
is > 20 ° C for 1 minute. The
internal fan stops running.
Alarm light flickers
/
/