ZyXEL Communications ES 3500 Series Troubleshooting Manual page 12

FAN Error
1. CLI:
Figure 3 Enter CLI command "Show hardware-monitor C".
Note:
If FAN status is error, you can try to replace the FAN model to recovery it, if the
problem cannot resolve, please send to the device to RMA.
Voltage Error
1. CLI:
Figure 4 Enter CLI command "Show hardware-monitor C".
Note:
If Voltage status is error, the problem may relate power supply or power
source.
Suggestion:
Using a UPS connect to the switch and monitor a while, if the problem
l
can resolve, the root cause may relate customer's environment.
If problem cannot resolve by connection UPS, the root cause may relate
l
power supply, please send the switch to RMA.
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