Specifically this error code means that during a cooling segment in the programmed firing, one of the thermocouple temperatures is more than 50 degrees above the set point for longer than 1
On the DynaTrol you will need to use the Vary-Fire programming. On a 3-button Bartlett or 4-button One-Touch enter a custom program.
Here is an example:
This video shows you how to use and program the One-Touch™ control. Be sure to follow the instruction manual because every sequence of button pushing is carefully described and detailed.