On a 6000E, the error message E-03 means the timecard was inserted into the clock incorrectly or dust/debris is jammed in the card slot. To correct the problem:
- Remove the ribbon.
- Verify nothing is jammed in the card slot.
- Verify the card is being inserted correctly.
If the problem persists, the sensors that detect the left side of the card and/or the right side of the card have malfunctioned. It is also possible that one of the motor components have failed.