Troubleshooting
Problem | Possible Cause | Solution |
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Indicator lights are all | No power at AC | Ensure that power is available at |
off when charger is | receptacle. | receptacle. |
connected to an AC | Defective cord. | Replace wiring. |
receptacle. | Open fuse in charger. | Have charger serviced by qualified |
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| person. |
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Indicator lights | Charger does not detect | Check polarity and quality of battery |
continue to scroll | battery for one of following | connection. |
when the charger is | reasons: |
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connected to a battery | - poor or no connection | If leads are damaged or internal fuse |
and AC | - reverse polarity connection | open, have charger serviced by qualified |
| - damaged leads | person. |
or “Charging” | - open fuse in charger. |
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indicator does not turn |
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on continuously | Battery voltage too low. | Check battery voltage rating. Do not |
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| attempt to charge a battery rated 6 volts. |
or “Ready” indicator |
| If battery is rated for 12 volts, leave |
blinks continuously. |
| connected for 8 hours to see if it will |
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| recover. If battery doesn’t start charging |
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| after 8 hours, it is probably damaged and |
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| will not accept a charge. |
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“Charging” light blinks | Battery voltage is too high. | Check battery. Do not charge a battery |
but does not come on |
| rated at more than 12 volts nominal. |
steadily. Other |
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indicator lights are off. | Battery is connected to | Disconnect or turn off other charging |
| another charging source. | source (e.g. an alternator). |
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“10A” indicator light | Charger has shut down due | Allow charger to cool. Improve |
blinks. Other indicator | to internal overheating. | ventilation or install in cooler location. |
lights are off. |
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Charger appears to be | Battery capacity is greater | Use a higher capacity charger. |
taking too long to | than 200 amp hours. |
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charge battery. Ready |
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indicator does not light | Load connected to battery is | Disconnect load or switch load off. |
after 24 hours of | draining charge current so |
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charging. | that battery does not |
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| recharge. |
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| Battery has a damaged cell. | Replace battery. |
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