Liberty Pumps 441 - Manual (Page 9)

INSTALLATION cont.
Red LED - power is present
Yellow LED - Prequalification test stage is complete and testing or charging in process
Green/Occasional Yellow - Charger turns on intermittently to maintain proper charge
Green LED -Charging complete
Green/Yellow LEDs Alternately Flashing - System is in Error Mode (see Table II, Page 10)
NOTICE: For more detailed information, see “Charger Operation” on page 10.
Figure 9 – Model 441 Charger LED Panel
TABLE II - Model 441 Charger Error Table (Green and Yellow LEDs will flash alternately)
Error Description Possible Causes Fix
The Battery Failed Pre-
Qualification Test
The battery is highly sulfated
The charger is connected to a six-volt
battery Replace the battery with a 12-Volt deep-cycle
marine battery
Replace the battery with a 12-Volt deep-cycle
marine battery
Battery Over-Voltage The Charger is connected to a 24 Volt
Battery Replace the battery with a 12-Volt deep-cycle
marine battery
Charge Time Monitor Battery took too long to complete its charge:
A. Load applied (e.g. the pump motor
started) during charging
B. The battery ampere-hour rating is too
large (Max. 96 ampere-hours) Be sure pump cannot start during charging; reset
the charger
Replace with correct size battery (see Page 4)
Excessive Battery Drain Pump motor ran during charging (that is,
with the main A.C. power ON), causing the
system to shut down Check primary sump pump. The BBU generally
runs only when the main A.C. power is out. If there
has not been any power outage and the BBU has
run, the primary pump itself may have failed
Reverse Battery
Connection
Charger is connected backwards to the
battery. (That is, Charger (+) to Battery (-)
and vice versa) Reconnect Charger (+) to Battery (+)/(-) to (-)
Battery Overheated Cells in an old battery may deteriorate with
age Replace battery with a 12-Volt deep-cycle marine
battery
TABLE III - Model 441 Charger Light Indications
Charger Light On/Off/Flashing Indicates
All Lights Off System is not receiving AC power
Power (Red Light) On
Off System is receiving AC power
System is NOT receiving AC power or battery leads are reversed
Charging (Yellow Light) Flashing 1x/Second
On, steady
Flashing alternately with
green light Charger is running “Pre-Qualification” test (this lasts 45 seconds to 6
hours)
Charger is either in “Constant Current” or “Constant Voltage” stage.
This may last up to 96 hours
System is in an ERROR mode (see Table II, above)
Charged (Green Light) On, yellow light Off
Flashing alternately with
yellow light Battery is fully charged
System is in an ERROR mode (see Table II, above)
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