My first tempering machine was a Rev. It didn't get the temperature of the chocolate low enough either, so I melted it by hand, and cooled it by hand while the EMPTY machine was going through it's cycle. (I used a blow dryer to heat the probe up).
Then when it was at it's "working temperature", I put in the cooled and thickened hand tempered chocolate. The machinedid exactly what it was supposed to do, and began heating the chocolate to get it "back up" to its working temperature, where it held there, stirring away, and in tempter just fine.
Hope that helps.
Brad