Cooling the 975?

I recently returned my 975 for repairs at the factory and was told the unit had signs of overheating. I have a fairly open cabinet and use a top mounted cooler for my amp. Anyone know of a bottom mount cooler for the 975? The vents are on the bottom and sides so a top mount won't work. Would like it to have thermal sensor so it won't run when the unit is off. Any suggestions?