Most generators are oversized for the loads they support. That means they rarely see enough demand to reach proper operating temperature. When a generator consistently runs under 30 percent load, unburned fuel builds up in the exhaust system. This is known as wet stacking, and it can reduce performance, damage components, and lead to failure during an emergency. A load bank test brings the generator up to the correct operating range, clears out unburned fuel, and confirms the unit can carry real