Delta Electronics VFD007S23A manual Change fan To overheating

	Chapter 8 Maintenance and InspectionsVFD-S Series
Printed circuit board and connector of main circuit
		Maintenance
Check Items	Methods and Criterion		Period
		Daily	Half	One
			Year	Year
If there are any loose screws and	Tighten the screws and press the
connectors	connectors firmly in place.
If there is any peculiar smell and	Visual inspection and smell
color change
If there is any crack, damage,	Visual inspection
deformation or corrosion
If there is any leaked liquid or	Visual inspection
deformation in capacitors
Cooling fan of cooling system
		Maintenance
Check Items	Methods and Criterion		Period
		Daily	Half	One
			Year	Year
	Visual, aural inspection and turn the
If there is any abnormal sound or	fan with hand (turn off the power
vibration	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	Change fan
to overheating
Ventilation channel of cooling system
		Maintenance
Check Items	Methods and Criterion		Period
		Daily	Half	One
			Year	Year
If there is any obstruction in the	Visual inspection
heat sink, air intake or air outlet

Revision August 2006, SE08, SW V2.61 8-5