Nilfisk-ALTO 530 Trouble Shooting Guide, Problem, Possible Cause, Solution, Wiring Diagram 8/98

TROUBLE SHOOTING GUIDE

PROBLEM	POSSIBLE CAUSE	SOLUTION
Motor does not run.	1) Not firmly plugged in.	1) Check attachement plug.
	2) Bad On-Off switch.	2) Replace switch.
	3) Line open.	3) Replace cord.
	4) Motor open.	4) Check motor and wiring.
	5) Fan locked by material.	5) Remove obstruction.
Motor runs but cleaner	1) Belt broken.	1) Replace belt.
does not pick up.	2) Blocked air system.	2) Clean obstruction.
	3) Fan broken.	3) Replace fan.
	4) Worn brush roll.	4) Replace brush roll.
	5) Motor slow.	5) Check carbon brushes.
	6) Bag full.	6) Empty bag (or change paper bag).
Motor runs erratically.	1) Worn carbon brushes.	1) Replace brushes.
	2) Defective armature.	2) Check spark, replace armature.
	3) Bad electrical connection.	3) Check wiring.
	4) Defective On-Off switch.	4) Replace switch.
Brush roll vibrates.	1) Ball bearing worn out.	1) Replace brush roll.
	2) Ball bearing holder damaged.	2) Replace ball bearing holder.

CLARKETECHNOLOGY

530 Upright Vacuum

Wiring Diagram 8/98

CLARKE TECHNOLOGY 539 Upright Vacuum Operator's Manual Page -9-