well from what i know ,, u have to let the refer return to room temps ,, then u will see a change ,, i understand that may not be good in situation ,, but it does work ,, btw it is the theromastor ,, i take it u have a norcold ?? if not ,, i am wrong all the way
JMO
Btw if u move it up u will get more cooling ,, and if down ,, less cooling ,, but as i said ,, it has to be brought down to room temp before it takes effect ,, but again JMO