Cracks in EDP

["future perfect" <artists@hazardfactor.com>]

My EDP seems to be pretty sensitive to heat. I just finished a looping show
outside in the Florida sun (it was 80 out today) and after about an hour of
my EDP baking in a 6-space rack, it started to add crackles and pops into
the loops. They got pretty bad, eventually I had to switch in my DL4
instead, and shut the EDP down for the rest of the set. Now I know it was
the EDP causing the pops, because I recorded some silence with no input 
into
the EDP and sure enough, the pops and crackles came back. This has happened
maybe half-a-dozen times when playing while it was hot outside in the sun. 
I
would like to know if anyone else has had this problem, and if it can be
solved, Is it just a matter of ventilation? A fan, perhaps? Is it just the
memory that is sensitive?

BTW, Misha, the other half of my duo Future Perfect, uses a DL4 to loop her
vocals.

Dave Eichenberger- guitars.loops.devices
http://www.hazardfactor.com