15.4If the charger is moved around the shop or transported to another location, take care to avoid/prevent damage to the cords, clips and charger. Failure to do so could result in personal injury or property damage.

16.TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

REASON/SOLUTION

Charger

AC outlet is dead

Check for an open fuse or

will not turn

 

circuit breaker supplying the

on when

 

AC outlet.

properly

 

connected.

Poor electrical

Check the power cord and

 

connection.

extension cord for as loose

 

 

fitting plug.

 

Severely discharged,

The battery may not want

 

but otherwise good,

to accept a charge due to

 

battery.

a run-down state. Allow the

 

 

charging to continue until the

 

 

battery has had a chance to

 

 

recover sufficiently enough to

 

 

take a charge. If more than 20

 

 

minutes, stop charging and

 

 

have the battery checked.

 

Clips are not making a

Check for poor connection to

 

good connection to the

battery and frame. Make sure

 

battery.

connection points are clean.

 

 

Rock clips back and forth for a

 

 

better connection.

 

Battery is defective.

Check the battery.

 

Reverse connections

Unplug the charger and

 

at battery.

correct the lead connections.

Charger

Transformer

No problem, this is a normal

makes a

laminations vibrate

condition.

loud buzz

(buzz).

Have charger checked by a

or hum.

Shorted Diode

 

qualified technician.

 

Assembly or Output

 

 

Rectifier Assembly (hum).

 

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Schumacher SEM-1562A owner manual Troubleshooting Problem Possible Cause REASON/SOLUTION