Two posibilities come to mind, neither apply here.
* Cold enough that the thermostat is satisfied, and the
compressor doesn't run.
* Condensor is cold enough that the refrigerant is super
cooled. Head pressure isn't enough, or phase change is
inadequate.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Ed Pawlowski" wrote in message
...

I've read, but have no proof, that too cold of an ambient
air can cause a
refrigerator to not cool properly. If there is any truth to
that, you'd
need a good AC guy to explain it.