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Troubleshooting
3
The station’s display
To troubleshoot the CT500, you’ll need to pay attention to the messages are displayed on the 2-line
display. The display varies slightly depending on whether or not the CT500 is equipped with a card reader.
Under normal conditions, the CT500 displays the following message to indicate that it is ready for
charging:
Understanding error messages
The following pages describe the error messages that can occur on a CT500. If one of the lights to the left
of the CT500’s display illuminates or blinks RED, read the display for information about the type of error
that has occurred.
Power up errors
The follow messages can occur when the station powers up.
FAULT
GFCI TRIP / SELF-TEST FAILED
Cause/Other Symptoms: Upon power-up, the station detected a ground fault.
Solution/Action: Press and hold the STOP button for 10 seconds to reboot the CT500. If the message
continues to be displayed, call Coulomb Customer Support at 1-888-758-4389.
The bottom line scrolls information across the display to indicate what action to take.
AVAILABLE
REMOVE CONNECTOR FROM HOLSTER...
NOTE: In the CT500 is equipped with a card reader, the second line of the display will read “HOLD CARD
NEAR LOCK.”
