Controller displays 'Ground Fault' or 'Earth Fault'; generator may trip off-line.

Safety First: Ground faults can present shock and fire hazards. Turn OFF generator and utility breakers before inspection. Use a qualified electrician for insulation testing.

• 1. Inspect visible wiring: Check generator output cables, conduit, and junction boxes for signs of damage, burns, or water ingress.
• 2. Isolate loads: Turn off branch breakers in the main panel and attempt to run the generator with minimal load. If the fault clears, re-energize circuits one at a time to identify the problematic branch.
• 3. Check for moisture: Look for condensation or water in outdoor panels or receptacles. Dry and seal as needed.
• 4. Perform insulation resistance test (advanced): An electrician can use a megohmmeter to test insulation between phase conductors and ground to locate the fault.
• 5. Repair or replace damaged wiring/equipment: Once the faulted section is identified, repair or replace cables or devices before resetting the Ground Fault alarm.