It's been 100+ degrees here for a while (not the past few days because he had some rain), but I never have problems with mine. I have my cover off so that my be helping a lot. If you're any good at cutting metal, and you're not too worried about hurting your amp, take the cover off, and cut a 3x3 hole, actually you'll want to cut 2 of them, and buy a new fan. Mount the fans to it. Making sure one blows cooler air in, and one ***** hotter air out. Upgrade the grounding wires, or just add a few more grounding points to disperse the heat a little bit better.