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Display turns black
and shows E3 in the
middle
Battery failure
When the battery fails, the
display will flash "E3" quickly,
and a red light will flash quickly
on the battery. The machine will
automatically shut down after
flashing for 10 seconds. In this
case, please contact
Display turns black and
shows E4 in the middle
Negative Temperature
Coefficient connection abnormal
When the Negative Temperature
Coefficient is abnormal, the
display will flash "E4" quickly,
and the red light on the battery
will flash quickly. The machine
will automatically shut down
after flashing for 10 seconds. In
this case, please contact
If there is any problem or malfunction during use, please send your question and order
number to our email.
We will provide you a good after-sales service within 24 hours.
E-mail: [email protected]
WARRANTY
Display turns black and
shows E5 in the middle
Host overcurrent protection
In order to protect the quality of
the host, there is a reminder of
over-current protection. When
the host is used over current,
the display will flash "E5"
quickly, and a red light on the
battery will flash quickly. At this
time, temporarily stop using the
vacuum cleaner and wait for a
while before using it again
EN
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