fan running behind electrical circuit panel

[tom.keith]

First extended camping in 2010 flagstaff.
When I turn on the overhead light in the back of our rear kitchen rig located above the rear window a fan starts and it sounds like it is behing the panel where the circuit breakers are (below the fridge). Turn the light off and fan noise stops. This makes no sence to me?? Any answers? Thanks

[AVid]

It's the cooling fan for the convertor. As the load on the converter increases so does the heat. It will heat up to the point where the fan will come on. When the load subsides, the fan will shut off.

[bikendan]

yep, converter cooling fan.

[campnqueen]

Just make sure you don't block the hole in the front on the converter panel... the air needs to circulate.

[tom.keith]

Thanks all. This forum continues to be a great source of information. I knew our Jayco inside and out. Maybe after this 3 month adventure I'll have this new rig figured out.