If you have a two-section kiln your control should be programmed for two zone instead of three zones.
This is easy to fix but changing the setting in the control.
See this video for how to change the number of zones on a DynaTrol.
For a Genesis 2.0 control:
Selecting the number of thermocouples is set up in the regular Menu.
To program the number of thermocouples, press “MENU”, scroll down to “4-Configuration”, and select it. Scroll down to “5- Number of Zones” and select it.
Type in the desired number of zones (1, 2, or 3) and press “SAVE”. (if you have a two-section kiln like an e18S or a JD23V then type in "2".
For more information on FAIL TC see this link.
