Fixing Keystone's poor engineering

I camp at the Colorado River during the summer months, and regularly see outside temps in the 110-120 degree range. That means that the power panel is running at high current all the time (hookups, A/C running 24-7) and gets quite hot. In my MH, the heat build up was enough to consistently start blowing the breaker in the panel, so I added ventilation as well. However, I went a step further; I added a 4" muffin fan that actually pulls air through the panel from inside the MH and then exhausts it outside, through a 4" hole (covered with mesh) in the floor under the panel. This means that it pulls the air-conditioned (cool) air through the panel and exhausts the heat outside the MH. While previously, the face of the panel would be very hot to the touch while under a heavy load, it is now actually cool to the touch, and I have never had a breaker trip since.