[3dem] vitrobot humidifier

[Rachel Scherer]

Our "Mark I" vitrobot has not beenused for several months. The 
humidifier is not behaving well, not always responding to either the 
"enable" button on the software, or to the humidity set point. We can 
see that the red light inside the water chamber that comes on when the 
humidifier is running sometimes is quite dim, sometimes bright, and this 
A: seems to be indicating when it is working properly (bright=on) and B: 
not something anyone ever noticed about it before - it always seemd to 
be ON or OFF with no intermediate (and dysfunctional) state.
I will add though, that form day one, the humidifier has always been 
wonky in its response ot set point and whether or not it resonded fist 
time to the enable/disable toggle on the software.
Anyone seen anything similar? More important - anyone know how to fix? 
We do not have a service contract.
-Rachel Scherer
UMASS Amherst

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Rachel Scherer			rachel at bio.umass.edu
Biology Department		(413)545-2825	vox
UMASS Amherst			(413)545-3243	fax