Found this today concerning the current Go Power GPR-22 controller. Might be good for a laugh considering "close to the batt" and "above the refrigerator."
"4. Choosing a Location
The GPR-22 is designed to be mounted flush against a wall, out of the way and easily visible. The GPR-22 should be:
• mounted as close to the battery as possible.
• mounted on a vertical surface to optimize cooling of the unit.
• indoors, protected from the weather.
In an RV, the most common location is a panel above the refrigerator. The wire from the solar modules most commonly enters the RV through the fridge vent on the roof. Battery connections connect directly to the batteries."
http://www.altestore.com/mmsolar/others/GPR_22_Regulator.pdf