Delta VFD-E Series - Cooling Fan of Cooling System; Ventilation Channel of Cooling System

Chapter 6 Fault Code Information and Maintenance 
6-12
Cooling fan of cooling system
Check Items Methods and Criterion
Maintenance
Period
Daily
Half
Year
One
Year
If there is any abnormal sound or
vibration
Visual, aural inspection and turn the
fan with hand (turn off the power
before operation) to see if it rotates
smoothly

If there is any loose screw Tighten the screw

If there is any change of color due
to overheating
Change fan

Ventilation channel of cooling system
Check Items Methods and Criterion
Maintenance
Period
Daily
Half
Year
One
Year
If there is any obstruction in the
heat sink, air intake or air outlet
Visual inspection
