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TROUBLESHOOTING AND ERROR CODES

Error Codes

ERROR

CODE

DESCRIPTION

REASON/SOLUTION

F01

The battery voltage is

still under 10V (for a 12V

battery) or 5V (for a 6V

battery) after 2 hours of

charging.

The battery could be bad. Have it checked or

replaced.

F02

The charger cannot

desulfate the battery.

The battery could not be desulfated; have it

checked or replaced.

F03

The battery was unable

to reach the “full charge”

voltage.

May be caused by trying to charge a large

battery or bank of batteries on too low of a

current setting. Try again with a higher current

setting or have the battery checked or replaced.

F04

The connections to the

battery are reversed.

The battery is connected backwards. Unplug

the charger and reverse the connections to the

battery.

F05

The charger was unable

to keep the battery fully

charged in maintain mode.

The battery won’t hold a charge. May be

caused by a drain on the battery or the battery

could be bad. Make sure there are no loads

on the battery. If there are remove them. If

there are none, have the battery checked or

replaced.

F06

The charger detected that

the battery may be getting

too hot (thermal runaway).

The charger automatically shuts the current off

if it detects the battery may be getting too hot.

Have the battery checked or replaced.

If you get an error code, check the connections and settings and/or replace the battery.

Troubleshooting

PROBLEM

POSSIBLE CAUSE

SOLUTION

The battery is connected

and the charger is on, but

isn’t charging.

The charger is in tester mode,

not charger mode.

Clamps are not making a

good connection.

Press the BATTERY TYPE

button to activate charging

and select a charge rate.

Check for poor connection at

battery and frame. Make sure

connecting points are clean.

Rock clamps back and forth

for a better connection.

Indicator lights are lit in an

erratic manner, not explained

in this manual.

You might have accidentally

activated a special diagnostic

mode.

Make sure nothing is touching

the control panel, then unplug

the charger and plug it in again.