VEC1087 A
REV101103
8
TROUBLESHOOTING – FAULT LED LIT
NOTE:
Charger will NOT operate on batteries below 4.0 Volts. If a 12 Volt battery is below 4.0 Volts it is probably shorted,
open or sulfated. Replace the battery.
The following conditions may light the FAULT LED:
• Poor connection to battery (or frame)
• Charging too fast - Decrease Charge Rate - Press 2/6/10A push button to select lower rate.
• Charging too slowly - Battery is large and did not complete charging in 18 hours - Press 2/6/10A to charge at a
faster rate
• Shorted battery cell - Replace battery
• Open battery Cell - Replace battery
• Battery sulfated - have battery serviced or replace battery
• Reverse Polarity LED LIT - disconnect AC then reverse clamp locations on battery and frame.
• Internal over-heat in charger- make sure fan is not blocked.
Try charging another battery, if the FAULT LED does not light, then one of the above problems exists with the initial
battery. Charger will not charge and the fan will not operate if there is a fault. Call Vector Technical Support
toll free: (866) 584-5504.
SULFATED BATTERY
Batteries left in a discharged state for a long period of time are likely to become "sulfated". Sulfated batteries cannot
accept a high rate of charge since the internal plates are coated with lead sulfate. To see if a battery in this condition can
be "saved", take it to a service station or battery distributor for professional evaluation and service.
INTERNAL SHORT CELL BATTERY
• If the battery being charged has an internal shorted cell, the FAULT LED will light.
• If FAULT LED light comes on, we recommend that you take your battery to a certified automotive service center for
evaluation.
BATTERY NOT ACCEPTING A CHARGE
• Make sure that the charger is plugged into a "live" 110/120VAC outlet and POWER LED is lit.
• Unplug charger and check battery connections - ensure there is a good connection with battery terminal and/or
vehicle chassis.
• Have the battery checked for sulfated condition (qualified service station or battery distributor).
• Check that the correct charge rate has been selected for the battery being charged.
• Ensure that enough charging time has been allowed for-check table in Appendix A (page 9) for approximate charging
times.
VERY COLD BATTERY
If the battery to be charged is extremely cold (in temperatures less than freezing - 0º C/32º F) it cannot accept a high
rate of charge, so the initial charge rate will be slow. The rate of charge will increase as the battery warms.
WARNING:
DO NOT attempt to charge a frozen battery.
