Controller displays “Emergency Stop” or “E-Stop Active”; generator will not start.

Safety first: Verify that it is safe to allow the generator to run before resetting any emergency stop devices.

Steps:

• Check local E-stop: Locate the red emergency stop button on the generator. If it is latched in, twist or pull (per label) to release.
• Inspect remote E-stops: If your system has remote emergency stop stations, verify none are activated.
• Check wiring: Inspect the E-stop circuit wiring from the switch to the controller for cuts, loose connections, or corrosion.
• Test switch: With power off, test continuity across the E-stop contacts. Replace the switch if it does not change state when operated.
• Clear alarm: After restoring the circuit, clear the alarm on the controller and test start.