TROUBLESHOOTING

Performance problems often can be corrected by the user. Please completely read this chart for possible solutions to common problems.

PROBLEM

POSSIBLE CAUSE

SOLUTION

 

 

 

The battery is connected and

The charger is not in

Press DISPLAY MODE

the charger is on, but it isn't

charging mode.

button until Battery % or

charging.

 

Voltage light comes on.

 

 

 

Indicator lights are lit in an

A button may have been

Make sure nothing is

erratic manner not explained

pressed when the charger

touching the control panel,

in the “Using Your Battery

was plugged in.

then unplug the unit and

Charger” section.

 

plug it in again.

 

The charger may be

Return to place of purchase

 

defective.

for replacement.

 

 

 

All the lights are flashing.

Charger in abort mode.

See “USING YOUR

 

Battery may be bad.

BATTERY CHARGER.”

 

 

 

The CHECK (red) light

This will happen if the

Reset the charger by un-

always flashes before the

battery did not reach full

plugging it or briefly discon-

battery is completely

charge within 24 hours. May

necting the negative battery

charged.

be due to a very large

clip. Select the desired

 

battery or a bank of batteries

charge rate and battery type

 

requiring more power than

again, if necessary.

 

the charger can deliver in

 

 

24 hours. Battery may also

 

 

be faulty.

 

 

 

 

The green CHARGED light

The battery may be fully

If the battery is in a vehicle,

turns on a few minutes after

charged or recently charged,

turn the headlights on for a

connecting to the battery.

leaving the battery voltage

few minutes to reduce the

 

high enough to appear to be

battery voltage and try

 

fully charged.

charging again. Also try a

 

 

lower CHARGE RATE

 

 

selection.

 

 

 

The charger is making an

The charger has a relay that

No problem, this is a normal

audible clicking sound.

turns the current on and off

condition.

 

to the battery.

 

 

 

 

The fan turns on and off

The fan is turned on and

No problem, this is a normal

unexpectedly.

off as determined by the

condition.

 

software and temperature.

 

 

 

 

The measured current is

The charger reached the

No problem, this is a normal

much lower than what

maximum voltage and is

condition.

was selected.

reducing the current.

 

 

The charger detected an

Make sure the charger does

 

over-temperature condition

not have the side ventilation

 

and has reduced the current

holes blocked. Move charger

 

to allow the unit to cool.

out of the sun and into the

 

 

shade.

 

 

 

The charger was unplugged

The battery is supplying the

Disconnect the battery or

from the wall but the display

power to the display.

press CHARGE RATE or

is still on.

 

BATTERY TYPE switch.

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Schumacher WM-2500A, SC-2500A owner manual Troubleshooting, Problem Possible Cause Solution