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I deal with several -80 freezers, some chest and some upright and most 
of them being Revco's. We have rebuilt about five without problem over 
the last 6-8 years. We hire an outside service, Minus Eleven 
http://www.minuseleven.com/
in our case, and they replace the two compressors, lines, filters, etc. 
We have not had any abnormal issues with the rebuilds. If the box and 
controls are sound it is a good financial solution. I think lately the 
fee has been around $3-4000. I have been told the life time of the 
original freezer is 10-15 years and a rebuild should be the same.

Louie

Martin Wessendorf wrote:

> Search the CONFOCAL archive at
> http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
> 
> Dear List--
> 
> This is off-topic but our -80 freezer (a Revco) died and we need to 
> replace it.  This one lasted 11 years; I have no idea of whether that's 
> good, bad or normal longevity for that brand.  --Does anyone have any 
> recommendations for ultracold freezers?  Cost, lifetime/reliability and 
> usability are all considerations.  I'd prefer upright to chest but a 
> small chest freezer could be an option, too.
> 
> We don't need anything huge--10-15 cu ft (about 285-430 liters) should 
> be fine--but it'll need to be something available in the US.
> 
> Thanks for the help!
> 
> Martin Wessendorf

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