PROBLEM

PROBLEM

POSSIBLE CAUSE

SOLUTION

 

 

 

 

1.- Not firmly plugged in.

1.- Check attachment plug.

A) Motor does not work

2.- Bad ON-OFF switch.

2.- Replace switch.

3.- Line cord open

3.- Replace cord.

 

4.- Motor open

4.- Check motor and wiring.

 

5.- Fan blockage by material

5.- Remove obstruction

B) Motor works but cleaner

1.- Belt broken.

1.- Replace belt.

2.- Blockage air system.

2.- Remove obstruction.

does not pick up/has suction

3.- Fan broken.

3.- Replace fan.

 

4.- Worn brush roller.

4.- Replace brush roller.

 

5.- Motor slow.

5.- Check carbon brushes.

 

6.- Bag full.

6.- Empty bag (or change paper bag).

C) Motor works incorrectly

1.- Worn carbon brushes.

1.- Replace brushes.

2.- Detective armature.

2.- Check spark, replace

 

3.- Bad electrical connection.

3.- Check wiring.

 

4.- Detective On-Off switch.

4.- Replace switch.

 

1.- Ball bearing worn out..

1.- Replace

 

2.- Ball bearing holder

 

D) Brush roll vibrates.

damaged

2.- Replace ball bearing holder.

5

DECEMBER-10

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Koblenz/Thorne Electric U-90, U-80 manual Problem, Possible Cause, Solution