Generator shuts down or trips its internal circuit breaker with an 'Overload' or 'Load Shed' message when large loads are applied.

Safety first: Open the generator output circuit breaker and the main circuit breaker in the transfer switch before inspecting wiring. Use insulated tools and PPE.

Steps:

• Reduce load: Turn off non-essential loads (electric ovens, HVAC, water heaters) and attempt to run the generator again. If it runs normally, the system was simply overloaded.
• Check ATS load management: For Honeywell-branded automatic transfer switches with load shedding, verify that high-priority loads are correctly assigned and that load control modules are wired according to the installation manual.
• Inspect for shorts: If overload occurs immediately with minimal load, have an electrician check for short circuits or ground faults on circuits fed by the generator.
• Breaker check: Inspect the generator's internal circuit breaker for signs of overheating or mechanical damage. Replace if it will not reset or trips at a low load.
• Re-test: After corrections, gradually add loads while monitoring current draw to stay within the generator's rated kW.