Error Code Symptom Measure
E01 Module
overtemperature
and
undertemperature
protection
1. Check whether the ambient temperature
of the charging module is too high or too
low. If yes, rectify the fault.
2. Check whether the air intake vent of the
charging module is blocked. If yes, rectify
the fault.
3. Exchange the slot of the faulty module
with that of a normal module. If the fault
occurs only in the original slot, the slot is
abnormal and needs to be handled.
4. Exchange the slot of the faulty module
with that of a normal module. If the fault
occurs again after the slot exchange,
replace the faulty module or contact the
technical support.
E02 Input overvoltage,
undervoltage, or
phase failure
1. Check whether the input voltage of the
charging module is normal. If not, rectify
the fault.
2. Check whether the input cables and
circuit breakers of the charging module
are normal. If not, rectify the fault.
3. Exchange the slot of the faulty module
with that of a normal module. If the fault
occurs only in the original slot, the slot is
abnormal and needs to be handled.
4. Exchange the slot of the faulty module
with that of a normal module. If the fault
occurs again after the slot exchange,
replace the faulty module or contact the
technical support.
E03 Short circuit
protection
1. Check whether the output of the
charging module is short-circuited. If yes,
rectify the fault.
2. Exchange the slot of the faulty module
with that of a normal module. If the fault
occurs only in the original slot, the slot is
abnormal and needs to be handled.
3. Exchange the slot of the faulty module
with that of a normal module. If the fault
occurs again after the slot exchange,
replace the faulty module or contact the
technical support.
R100030G1 Charging Module
User Manual 6 Maintenance
Issue 05 (2021-11-16) Copyright © Huawei Digital Power Technologies Co., Ltd. 32
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