NOCO Genius G750 - Manual (Page 11)

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G750
geniuschargers.com
TROUBLESHOOTING
NO LIGHTS COME ON WHEN THE BATTERY CHARGER IS PLUGGED
INTO AN ELECTRICAL OUTLET
BATTERY CHARGER STAYS IN STANDBY MODE AND WILL NOT CHANGE
MODES
If the battery charger stays in the STANDBY mode and will not change modes,
it could be the result of one of the following situations:
• HIGH VOLTAGE BATTERY
If the battery voltage is above 7.0VDC and you have selected 6V charge
mode, it could cause this ERROR condition. This ERROR will cause the
CHARGE LED and ERROR LED to blink continuously. To resolve this ERROR
condition, select 12V charge mode.
• ABNORMALITY PROTECTION
This ERROR condition is the result of the battery charger being in the Bulk
phase for more than 120 hours. This ERROR condition is the result of a bad
battery. To resolve this ERROR condition, take the battery to a local battery
store for an evaluation.
• POOR AC CONNECTION
Check if the AC outlet has power. If the AC outlet has no or limited power, it
could cause this ERROR condition. Plug a light into the AC outlet to check
if the outlet has power. If the light is extremely dim, this could be the result
of limited AC power. The battery charger is designed for use at 85-130 VAC.
If there is no power or the power is below 85VAC, locate another AC outlet
that has sufficient power to resolve this ERROR condition.
• BLOWN FUSE IN BATTERY CONNECTOR HARNESS
Check the fuse in the battery connector harness. If the fuse in the battery
connector harness has blown, it could cause this ERROR condition. Replace
the fuse with a 10 amp automotive blade-type fuse to resolve this ERROR
condition.
• CORROSION ON BATTERY TERMINALS
Check the battery connections for battery corrosion. If battery corrosion is
present on the battery connections, it could cause this ERROR condition.
Remove the battery corrosion to resolve this ERROR condition.
• LOOSE BATTERY CONNECTIONS
Check the battery connections to the battery. If the battery connections are
loose, it could cause this ERROR condition. Tighten the battery connections
to resolve this ERROR condition.
TROUBLESHOOTING
• FOR 6V BATTERIES
If you are trying to charge a 6V battery that is below 2.0VDC, you will need to
jump start the battery or connect the battery to a power supply to increase
the battery voltage above 2.0VDC to begin the charge cycle.
Continued On Next Page
CHARGE LED IMMEDIATELY ILLUMINATES TO GREEN
If the battery charger CHARGE LED immediately illuminate to GREEN when
the AC power is applied to the battery charger, the battery is either already
fully charged or the battery is in extremely poor condition as a result of
sulfation or damage. If the battery is new, the battery is likely already fully
charged. If the battery is relatively old and has not been used for a long
period of time, the battery is probably so severely damaged that the battery
cannot accept any current.
BATTERY CHARGER MAKING A CLICKING SOUND
If the battery charger is making a “clicking” sound and will not go into
a charge mode, it is probably the result of a battery in extremely poor
condition as a result of sulfation or damage. The “clicking” noise you hear
does not signify a battery charger failure. “Clicking” noise is the battery
charger attempting to enter into a charge mode, but when current is applied
to the battery, the battery voltage rises too quickly, and the battery charger
shuts off. Once the current is removed from the battery, the battery voltage
rapidly decreases, and the battery charger again tries to enter into a charge
mode. The “clicking” sound and this ERROR loop condition will continue
until the poor battery is removed.
LOW VOLTAGE BATTERY
If the battery voltage is below 2.0VDC (6V) or 7.0VDC (12V), the ERROR
LED (Orange) and the CHARGE LED (Red) will blink, indicating the battery
is out of range for the battery charger. In this situation, the battery charger
has determined that the battery voltage is too low to begin a normal charge
process. In order to increase the battery voltage to allow the battery charger
to begin charging, follow these steps: