Huawei NetCol8000-A Maintenance And Troubleshooting Manual page 18

Monthly Maintenance - Outdoor Unit
Inspection
Item
Method
Visual
inspection
Visual
Refrigerant
inspection, Tool
Pipes
inspection
Visual
inspection
Visual
inspection
Operation
Condenser
inspection
Visual
inspection
Rear Panel of
Visual
the electric
inspection
control box
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Check Item
The refrigerant pipes are secured. Secure the pipe support.
All refrigerant pipes are clean
without leaking and eroding.
The thermal insulator on the
refrigerant pipe is not damaged.
The fns are not pushed down.
The air intake section of the
condenser and the air exhaust
section of the fan are unblocked.
The fns are not blocked.
holes on the rear panel of the
electric control box are not dirty or
blocked.
Troubleshooting
Evacuating the refrigerant, and
repair the leak on the pipe.
Rewrap the thermal insulator.
Restore the fns by using a wire
brush.
Clean up obstacles on the inlet and
outlet.
Clean the fns.
holes using a brush.
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