Rev A
（
ACT-VCC-2000-AC)
15
7.
Maintenance and Warranty
7.1 Product maintenance
7.1.1 Tools needed
Table 7.1 Maintenance tools
Number
Tools
1
Multimeter
2
Phillips screwdriver
3
Slotted screwdriver
7.1.2 Spare parts list
Table 7.2 Spare parts list
No.
Spare part PN
Spare part name
Spare part model
Quantity
1
31.051
Internal Fan
190 AC FAN
1
2
31.052
External Fan
225 AC FAN
1
3
41.019
Main Control Board
JYJL V20
1
7.1.3 Routine Maintenance
Table 7.3 Routine maintenance
NUM.
Check items
Check methods
Solution
1
Power line
attachment
1. Turn off the supply power
2. Tug on the power line with moderate force and check
whether the line is loosening from its terminals
3. Tighten the
screws on the power cord terminals
with a screwdriver,
watch whether the screw is
tightening or stripped
If a power line is loose or loosening,
retorque the attachment terminals or
replace the cable if damaged.
2
Voltage
Stability
Use the multimeter to measure the Air Conditioner input
voltage, in order to gauge whether the voltage is within
normal range.
If the voltage is not within the normal
range, please turn off the power
supply immediately. Do not power-on
the Air Conditioner until the supply
voltage within normal range.
3
Attachment
bolt torque
Check the torque on all attachment bolts to ensure that
the unit is still secured to the enclosure properly.
Retorque any bolts as required.
4
Cooling
Power on the switch and check whether the self-test is
correct. If it is correct, then the monitor will display
compressor current as self-test program.
While self-testing, if there is
abnormal noise or vibration, please
cut power off immediately and notify
a professional to inspect.
If alarm triggers while self-testing,
please process as table7.3
5
Fan Dust
Accumulation
Check for dust build-up around the fan blades on both the
internal and external fans.
If significant dust has accumnulated,
use compressed air to blow dust off
of fan blades until clean.
7.1.4 Alarm code and Processing method
Table 7.4 Alarm information