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

Safety first: Ensure it is safe to restart the generator and that no maintenance is being performed before resetting any emergency stop.

• Check E-stop button: Locate the red emergency stop button on the generator enclosure or nearby wall. If it is pressed in, twist or pull to reset (per labeling).
• Inspect wiring: Check the wiring from the E-stop switch to the controller for loose connections or damage.
• Continuity test: With power off, test the E-stop switch with a multimeter to ensure it opens and closes correctly. Replace if faulty.
• Clear fault: After correcting the issue, clear the E-stop fault on the controller and attempt a manual start.

If the controller still reports Emergency Stop with the circuit closed, the controller input may be defective and require replacement.