I have 3 Reptile Basics racks. 2 32qt racks and one 41qt rack. The 32qt racks are still working, though the locking pins that keep them neatly stacked have broken or were pulled out without my knowledge and they won't stack well. The 41qt stopped putting out heat around May (around the time Akina laid her eggs) and I unplugged it and plugged it into the other side of the thermostat's cord. It started working again. Now, several months later, it has stopped warming up again. The plug has not been messed with and all 3 racks are on the same thermostat. The 2 32qt racks are heating up just fine and are maintaining a good temperature. Any thoughts as to why the rack has stopped working? I am hoping to get a new one soon. I've moved everyone around so that everyone is in the 32qt rack (using dividers with the smaller snakes so they can share a tub). I got the rack in March of 2008.