I want to thank all of you who emailed with anti frost suggestions. I have 
defrosted & thoroughly dried the cryo and got rid of any dust bunnies on 
the coils - although there wasn't a large collection. While nosing around 
with the back and sides off the cryo I noticed a blown fuse - made a quick 
trip to an electrical supply store and now the baby is humming along. Maybe 
this was the problem all along? We'll see tonite if the auto defrost 
activates as it should - every indication is that it will.
Thanks again.
Andi
.....................................................................
: Andrea Grantham, HT(ASCP)     Dept. of Cell Biology & Anatomy     :
: Sr. Research Specialist       University of Arizona               :
: (office:  AHSC 4212)          P.O. Box 245044                     :
: (voice:  520-626-4415)        Tucson, AZ  85724-5044    USA       :
: (FAX:  520-626-2097)          (email:  algranth@u.arizona.edu)       :
:...................................................................:
           http://www.cba.arizona.edu/histology-lab.html