Which of the following indicates a failed motor starter coil?

A failed motor starter coil typically means that the coil responsible for engaging the starter contacts is not functioning properly. When the coil fails, it cannot energize, which prevents the motor from starting even when power is supplied. As a result, the motor remains inactive despite attempts to energize it, making it appear unresponsive.

This situation is distinct from the other conditions listed. For instance, if the starter contacts remain closed, it suggests that the coil may be functioning, at least initially, as it has engaged the contacts. Similarly, if the motor runs continuously, it could imply that the contacts are stuck closed and the coil is energized. An overload trip occurring regularly usually indicates an issue related to motor load or protection settings rather than a direct problem with the starter coil itself. Thus, not starting when energized is a direct indication of a failure in the motor starter coil.