High exhaust temperature alarm; ECU logs EGT above limit; possible smell of very hot metal.

Safety: Exhaust surfaces can cause severe burns. Allow cooling before inspection.

• Check for exhaust restrictions: Inspect the exhaust outlet, rain cap, and silencer for obstructions such as nests, debris, or collapsed baffles. Clear any blockage.
• Verify load level: Confirm the generator is not overloaded beyond its kW rating. Reduce load and see if temperature normalizes.
• Inspect air intake: Ensure engine air filters are clean and intake louvers are unobstructed. Replace clogged air filters with Volvo Penta elements.
• Monitor DPF status: If a regeneration is active, elevated EGT is normal within limits. Ensure adequate ventilation around the exhaust and avoid running in confined spaces.
• Further diagnosis: Persistent high EGT under normal load may indicate fueling or timing issues and should be investigated with Volvo Penta diagnostics by a technician.