I have a new Profilux II Ex with firmware version 4.08

All probes were reporting values, but some of these were off by quite a bit.

eg. water temp on three thermometers showed 27, 26.7 and 26.5 degrees c. I took 26.7 to be a reasonable value.
The temp probe from the Profilux showed 39.8.

As I am seting up the unit, I started the PH calibration and this ran through sucessfully.

I then moved onto the temp, and went into the "Adjust Temperature" section for Temperature probe 1. and decreased the temp by 12 degrees. This then showed 27.8 degrees. I then decreased the temp by a further 2.0 degrees. this then showed 25.8 (this was an error I ment to decrease by 1.1)
I then increased the temp by 0.9 degrees.

At this point the temp showed 0 degrees.

When I now try to adjust the temp, it shows 0 degrees.

I have done all of the following
disconnected and reconnected the temp probe
power cycled the controller
factory reset the controller

None of these have an effect

In the Calibration Data section of ProFilux Control II version 4.0.8.1 I receive the following information

Value 1 20 deg ADC 1 -2147483648
Value 2 30 deg ADC 2 -2147483648

Can some one give me an idea as to what I can try OR is the Temp probe broken?