Originally Posted by kayakcrazy
When you use this light is it tied in with something else to cause a greater current draw? That's what the bulb looks like. Just this past weekend I turned on a kitchen ceiling lamp on my Kodiak 242RESL and as soon as I did that a fan on the power supply started to turn. Switched the light off and the fan quit running. I now have a situation where that bulb is drawing more amps than it's supposed to. I know now that I'll have to contact Kodiak to see what would cause this. You may have a similar problem.
It sounds to me as if the cooling fan is doing what it's supposed to do, cool. When you turn on a light or add additional load to the system the power supply ( I think you mean converter), ramps up to provide power for the additional device. Because the power supply is working harder it is creating more heat and therefore the fan runs to protect itself.
A lamp, or bulb is rated in wattage and can only draw the amount of wattage that it is designed to draw. It's a resistive load so it doesn't work harder such as a motor or other inductive loads can do.
Some power suppy fans run continously whereas others turn on as needed. I doubt you have a problem and only are aware of the fan because you hear it turn on.