Huawei NetCol5000-A050 - Page 185

Item Expected Result Troubleshooting
The liquid sight glass is almost
green, or not totally turns
yellow.
If the sight glass completely turns
yellow, water is too much in the
pipe. To solve the problem, empty
refrigerant out of the pipe,
vacuumize the pipe, drain out water,
and then charge new refrigerant.
NOTE
If the sight glass does not obviously turn
green, use a blow drier to blow wind to
the
lter until the sight glass is green.
Wear protective gloves and
touch the compressor angle
valve, needle valve, and
welding joints of the
refrigerant pipe to check
whether there are oil stains.
If there is an oil stain, check whether
the suction and exhaust pressure of
the compressor is within the normal
ranges. If the pressure is beyond the
normal range, contact Huawei
technical support.
No water exists under the
water pipe or on the thermal
insulation foam.
● If drops of water are evenly
distributed, wipe o them with a
dry cloth.
● If there are large water marks,
close the water inlet sluice and
process the leak points. If the
thermal insulation foam is
damaged or missing, lay out new
thermal insulation foam.
The refrigerant pipe support is
secure and intact.
Replace the refrigerant pipe support
and secure it again.
Indoor
fan
The indoor fan guard is not
deformed, and the fan blades
are not damaged.
Replace the fan.
The indoor fan runs smoothly. Take out the foreign matter.
The screws on the indoor fan
are not loose or distorted.
Tighten the screws using a 10#
socket wrench.
Water pan
lter
Open the water pan cover at the front door, and you can see the water pan lter.
Figure 8-1 shows how to remove a water pan lter.
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 8 Maintenance
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 175