5
Common Troubleshooting
No.
Function
status
Status
Indicator
Fault 1
Indicator
Fault 2
Indicator
Description
Initial state1
2
3
4
5
6
7
8
9
10
Stays on
Stays on Off Off Off
Off Off
Off Off
Off
Off Off
Off
Off Off
Off
Off
Stays on
Stays on Stays on
Stays on Stays on
Off OffStays on
Stays on
Stays on Stays on
Stays on
Stays on
Stays on
Stays on
Flash 1s
Flash
Flash 1s Flash 1s Power-on self-test or reset
Pending
connection
Pending connection
Charge
completed
Power
Indicator
Over-voltage
Under-voltage
If the voltage is lower or higher than
the set voltage value, the relay is
“divided”. When the voltage re-
turns to the range corresponding to
Table 2, the relay is ”closed” and
continues charging.
Communication
abnormal
The voltage of detection point 1 is
9.8V<U<11.2V; 6.8V<U<8.2V;
12.8V<U or U<5.2V; the relay is
disconnected
Power-on
self-test failure
Charger failure, relay disconnected
Charge
normally
The voltage of detection point 1 is 6
±0.8V, and the relay is closed
Ground
protection
1s blink
once
The ground wire is not connected,
and the relay is disconnected. After
the fault is clear, the relay is allowed
to be closed after the power is
turned on again.
Over-current
protection
1s blink
once
When the line current is 15A<17A, the
relay is disconnected, and the fault
light is on; after 10S, the charging will
be automatically resumed. If the
over-current is still displayed after 3
times, the charging will be
terminated. When the line current is
>17A, the charging ends immediately.
Leakage
Protection
1s blink
once
1s blink
once
The relay is disconnected. After the
fault is clear, it needs to be powered
on again before the relay is allowed
to close.
If the fault indicator red is always on during charging, please check if the power
supply of the device and socket is normal.
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