Generator shuts down under load, E06 appears on the display

Safety first: Turn OFF the generator and isolate it from the building electrical system. Lock out the transfer switch if present.

• Remove all loads: Switch OFF or unplug all loads connected to the Scheppach standby generator. On systems with an automatic transfer switch (ATS), switch back to utility power and open all large loads (HVAC, water heater, etc.).
• Reset breaker: With the generator OFF, reset the main breaker on the generator. Start the unit with no load and confirm it runs without E06.
• Add loads gradually: Reconnect loads one circuit at a time, watching the control panel current display if available. Identify any circuit that causes immediate E06 or breaker trip; inspect that circuit for shorts or overloaded appliances.
• Check ATS contacts: Inspect the Scheppach‑compatible transfer switch for signs of overheating or welded contacts. Replace damaged contactors or the ATS assembly.
• Verify generator sizing: Compare the total running and starting wattage of connected loads to the generator's rated and surge capacity. Reduce load or upgrade generator if consistently overloaded.