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Need to replace thermostat batteries, can't open

Hi, 
I have an old (early 80s) thermostat in a not very accessible spot.  Can't remember how to open it to replace the batteries, and don't want to force it.  It's a dual setback model that was top of the line at the time.  
Any ideas?  I know it's hinged somewhere, but can't really see where, and I remember it's somehow a little surprising . . .  just can't for the life of me remember how.  
I sort of faked the category in hopes that it would come close.

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Figured out how to take thermostat off -- not hinged, after all, but snap-off arrangement.
Thanks anyhow.

Posted on Nov 22, 2008

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