Generator starts but immediately stalls when load is applied, no specific code

Safety first: Isolate non-essential loads and ensure critical loads are protected before testing.

• Check load size: Compare the connected load to the generator’s rated kW. Reduce or sequence loads to avoid sudden large steps.
• Inspect fuel filters: Replace primary and secondary fuel filters if they are near service interval or show contamination.
• Fuel line inspection: Check for partially collapsed hoses or restrictions that may limit fuel flow at higher demand.
• Governor tuning: Have an MTU technician verify governor gain and response settings to ensure stable operation under load.
• Test with staged load: Apply load in smaller increments and observe engine response. Persistent stalling indicates deeper fuel or engine issues.