Huawei FusionModule1000A40 Maintenance Manual page 54

FusionModule1000A40 Prefabricated All-in-One
Data Center
Maintenance Guide
Alarm Alarm
Indicator Type
Name
Comms Fault
fault alarm
Earth fault Fault
alarm
Sys fuse Fault
fault alarm
S1 fault Fault
alarm
Issue 04 (2021-02-10)
Alarm System Action
Severity
Major
Major
Major
Major
Copyright © Huawei Technologies Co., Ltd.
4 Common Faults and Troubleshooting Measures
Possible
Causes
If Comms is
faulty, the
Flooding Zone
Fault will also
appear on the
panel. The
cause is that
the external
connected
repeater or
linkage output
board does not
have signals.
Earth is faulty
because
external cables
and other
devices are
short-circuited
to the ground
cable.
If Sys fuse is
faulty, the
cause is that
the power of
an external
device is too
high, which
causes the
implantable
fuse of the
mainboard to
burn out.
Sounder
output 1 fault
is caused by a
short circuit or
open circuit of
the external
connected
alarm bell.
Solution
Check relevant cable
connections and the
external connected
repeater or linkage
output board.
Check relevant
external cable
connections and
devices.
Check relevant cable
connections and
devices, and then
replace the relevant
fuse.
Check the relevant
terminal resistor,
cable connections,
and devices.
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