Took my esc apart the other day and cleaned it out. Wow was it ever full of debris. I believe the fan is totally shot now. Makes some very strange noises when I turn it on. This is from having the rock stuck in the fan. Emailed castle over a week ago and haven't heard anything back yet. I am just going to buy another fan and case. The only thing I am worried about is that the thermostat may have been damaged.