Strong burning smell or smoke from the alternator area; generator may still be running.

Safety first: Immediately disconnect load and shut down the generator if you smell burning insulation or see smoke.

• Reduce or remove load: Ensure the generator is not overloaded. Check the total kW draw and compare to the rating.
• Inspect cooling: Verify that alternator air inlets and outlets are not blocked by dust or debris. Clean with low-pressure air.
• Check bearings: Rotate the alternator rotor by hand (engine off) and feel for roughness or binding. Noisy or seized bearings require alternator service.
• Professional testing: If overheating recurs, have the alternator windings and insulation tested by a qualified shop. Continued operation can lead to failure and fire risk.