Huawei PV+ESS+Charger Solution - Page 74

No. Component Alarm Name Alarm
Sev
erity
Possible
Cause
Suggestion
13 AC Charger High
Temperature
Minor The possible
causes are as
follows:
1. The
ambient
temperature
of the
charger is
too high.
2. The cable
is short-
circuited.
Step 1 Check whether the
charger is exposed to strong
sunlight.
If yes, shield the charger from
direct sunlight. If the alarm
persists, go to the next step.
If no, go to the next step.
Step 2 Check whether there are
heat sources around.
If yes, keep the charger away
from heat sources. If the alarm
persists, go to the next step.
If no, go to the next step.
Step 3 Check whether the
ambient temperature is lower
than 40°C.
If yes, replace the charger when
the alarm persists.
If no, restart the charger after
the ambient temperature drops.
Wait for 1 minute and check
whether the alarm is cleared. If
the alarm persists, replace the
charger.
14 AC Charger Cable
Connect
ion
Abnormal
Critical The possible
causes are as
follows:
1. The
charger is
not
grounded.
2. The live
wire and
neutral wire
are reversely
connected.
Step 1 Check whether the
charger is properly grounded.
If yes, go to the next step.
If no, contact your electrician to
ground the charger correctly.
Step 2 Contact the electrician to
check whether the live wire and
neutral wire are reversely
connected (by checking
whether the voltage between
the PE wire and neutral wire is
greater than 60 V).
If yes, contact your electrician
to connect the wires correctly.
If no, replace the charger.
PV+ESS+Charger Solution
User Manual 5 Maintenance
Issue 02 (2023-01-13) Copyright © Huawei Technologies Co., Ltd. 68