Huawei NetCol8000-A Maintenance And Troubleshooting Manual page 20

Semi-annual Maintenance - Outdoor
Unit (2)
Inspection
Item
Method
Visual
inspection
Visual
inspection
Electric
control system
Visual
inspection
Visual
inspection
Operation
Low-
inspection
temperature
Visual
component
inspection
Visual
Sunshade
inspection
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Check Item
Cables are connected properly.
The cable holes of the electrical
control box are properly sealed.
Cables are not damaged or aged.
The electrical control box is free
from water.
Bolts are properly tightened.
Cables are securely connected.
Verify that screws on the sunshade
are tightened.
Troubleshooting
Secure the terminals.
Check whether the waterproof
connector is aging, if yes, replace a
new one.
Replace the cables.
Clean up the water in the box and
check the reason for leaking.
Tighten bolts.
Check the cable connection. If the
cable is loose, secure it.
Screw
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