FAILURE

DESCRIPTION

CAUSE

CODE

 

 

 

The battery was unable to reach

Could be caused by trying to charge a large

F03

battery or bank of batteries on too low of a

the “full charged” voltage (thermal

current setting or the battery may have a shorted

 

runaway detected).

cell. Try again with a higher current setting or

 

 

have the battery checked or replaced.

 

The charger was unable to

The battery won’t hold a charge. Could be

F05

caused by a drain on the battery or the battery

keep the battery fully charged in

could be bad. Make sure there are no loads on

 

maintain mode.

the battery. If there are remove them. If there are

 

 

none, have the battery checked or replaced.

 

The charger detected that the

The charger automatically shuts the current off

 

if it detects the battery may be getting too hot or

F06

battery may be getting too hot

the battery may have a shorted cell. Have the

 

(thermal runaway).

 

battery checked or replaced.

 

 

If you get a failure code, you have to check the connections and settings and/or replace the battery.

Troubleshooting

PROBLEM

POSSIBLE CAUSE

REASON/SOLUTION

Battery clips do not spark

The charger is equipped with

No problem, this is a normal

when touched together.

an auto-start feature. It will not

condition.

 

supply current to the battery

 

 

clips until a battery is properly

 

 

connected. Meaning, the

 

 

clips will not spark if touched

 

 

together.

 

The charger is making an

Circuit breaker is cycling.

The settings may be wrong.

audible clicking sound.

 

Check the charger settings.

 

Battery is defective.

Have the battery checked.

 

Shorted battery cables or clips.

Circuit breaker cycles when

 

 

current draw is too high. Check

 

 

for shorted cables or clips and

 

 

replace if necessary.

 

Severely discharged battery,

The battery may not want

 

but otherwise it is a good

to accept a charge due to a

 

battery.

run-down state. Allow charging

 

 

to continue until battery has a

 

 

chance to recover sufficiently

 

 

to take a charge. If more than

 

 

20 minutes, stop charging and

 

 

have the battery checked.

 

Reverse connections at battery.

Shut the charger off and correct

 

 

the lead connections.

Charger makes a loud buzz

Transformer laminations vibrate

No problem, this is a normal

or hum.

(buzz).

condition.

 

Shorted Diode Assembly or

Have charger checked by a

 

Output Rectifier Assembly

qualified technician.

 

(hum).

 

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Schumacher SWI-1555A owner manual Troubleshooting, Problem Possible Cause REASON/SOLUTION