Trouble Shooting Guide
No Red or Green LED Indicator
Check for loss of power at the AC outlet. Confirm RCD has not tripped. Check with a meter or AC test light that AC is present at the end of your extension cord.
Confirm all charger cables are installed with the correct polarity connections at each battery and that all connections are clean and tight.
With the AC power removed and the engine switched off, check the charge level of each battery with a DC meter or with the Sterling DC Voltage Probe & Diagnostics Tool. If there is no charge level indication for a battery, check each battery with a hydrometer to determine if it has one or more bad cells. (Batteries should always be replaced in sets and always the same type.)
If everything above checks out okay and you still don’t get any output from the charger, contact Sterling Power Products for product service.
Battery is Not Charging, Red and Green Indicator is “on”
Confirm all charger cables are installed with the correct polarity connections at each battery, and that all connections are clean and tight. Reverse polarity connections will blow output fuse, resulting in no output voltage.
With the charger on, read DC voltage at each battery. If any of the readings are less than 13 volts, proceed with the following:
A. Disconnect AC power at the AC outlet.
B. Remove charger cables from each battery.
C. Reconnect AC power and read DC voltage across each output cable. If output voltage is approximately 13 volts, then the charger is okay and each battery should be tested with a hydrometer with the charger and the engine off to determine if one or more batteries have bad cells. (Batteries should always be replaced in sets and always the same type.)
D. If there is no output when trying to read DC voltage, check each output fuse and replace as needed.
If the DC voltage at each charger output is less than 13.0 volts, contact Sterling Power Products for product service.
Important Notice: FCC Class A Part 15 Notification
Your Sterling ProSport battery charger has been designed and tested to comply with FCC Class A part 15. These regulations are to provide adequate protection agaings harmful interference while operated in a commercial application. If in a residential setting you are encountering interference with TV and radio reception, simply remove AC from the ProSport to confirm if your battery charger is causing interference. As an end user you can explore the following measures to minimise interference.
1)Choose a different AC circuit to power your ProSport charger.
2)Make sure all electrical appliances are properly grounded.
3)
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