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problemfreezerman  
#1 Posted : Monday, August 20, 2012 7:14:07 AM(UTC)
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problemfreezerman

Rank: Member

Groups: Registered
Joined: 6/28/2012(UTC)
Posts: 7

Brand: Marvel Scientific
Model: 17CAF
17CAF - Marvel Scientic Refrigeration

This freezer is currently being used for a research experiment but cannot maintain a constant low temperature. In prior experiments the freezer would cool to approx -24 C and remain at that temperature for over a week before it was allowed to warm back to room temperature. Now however the freezer is cycling between -24 C and -11 C on an approx 1 hr cycle.

Both the temperature controller (Fridgidair 216788100) and the compressor have been replaced however the behavior continues. What would cause this type of behavior from a freezer. It was moved from one building to another before the temperature cycling started. Any suggestions would be greatly appreciated.

This problem was posted once before but a number of changes have occurred since then including the compressor being replaced. Sorry for double posting.
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