Artisan TC4 - Popper suddenly stops, now it doesn't work

What steps will reproduce the problem?
I have an Artistan with the TC4 set up on a West Bend Poppery I.

I was roasting a batch, and then all of a sudden, everything turned off. This 
has happened before, and I just simply need to restart the roast by stopping 
the log and restarting it again.

But now, I get absolutely no response from my roaster. THhe fan doesn't turn on 
and the heater doesn't turn on. BUT - I am getting temperature readings from my 
thermocouples in Artisan. I don't understand why I am receiving thermocouple 
outputs (which are accurate), and why I am not able to tell the heater or fan 
to turn on. Could I have tripped the temperature sensor and it just hasn't 
closed?

What is the expected output? What do you see instead?
On Artisan, I see the thermocouple outputs, but I am not able to control the 
heater or the fan.

What version of the product are you using? On what operating system?
Version 0.7.2 on Windows 7

Please provide any additional information below.

Original issue reported on code.google.com by nicholas...@whirlpool.com on 31 Jan 2015 at 8:41

albertzl / artisan

Artisan TC4 - Popper suddenly stops, now it doesn't work #72