Product Manual

2 OPERATION
2.4.3 Fault indicator (Red)
When faults are detected, the charger shuts down the charging process and displays the
nature of the fault via a Red fl ashing LED. Possible faults are;
Continuously on - Hardware failure detected:
The SBC1205 failed its self-test on power up. The unit should be returned to the supplier
for inspection.
One Flash - Over current detected:
An excessive current will cause this fault. This will indicate a faulty battery if it occurs
during a charging cycle, but not necessarily if it happens upon connection. This fault may
also be triggered by trying to charge a lower voltage battery than specifi ed e.g. 6V on a
12V charger.
Two Flashes - Voltage problem detected:
A battery that remains at a low voltage for too long or a battery which has a higher
voltage than specifi ed, will cause this fault e.g. attempting to charge a 24V battery on a
12V charger.
Three Flashes - Faulty battery detected:
Charging a battery with a dead cell will result in this fault. With some batteries it might
take longer to detect the fault than in others, depending upon the initial level of charge
and also how damaged the battery is. If the battery is badly damaged, the fault may
show up as over current.
Four Flashes - Overheat:
The charger is too hot to operate, the charging process is suspended, and will
recommence once the charger has cooled down. This can happen on a very hot day,
if the charger is positioned in a very hot place while charging or if the ventilation holes
have been blocked. Also, the fan may not be functioning properly.
If the battery charger detects a fault it will shut down immediately. In this case, check
if connections to the battery are tight. Is the battery sound? Check the electrolyte levels
and use a Hydrometer to check for “dead” cells. A lead-acid battery is considered to be
discharged when the specifi c gravity of the electrolyte is less than 1.16.
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