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My digital kiln has 3 zones with 3 thermocouples. The kiln stalls out and shows an error code. Suggestions?

The back of the Sentry 2.0 controller has a series of terminals for the thermocouples. One set of terminals is for the top thermocouple, another set is for the center thermocouple, and the third set of terminals is for the bottom thermocouple.

Have the thermocouples or the controller been changed recently? If the thermocouples are connected to the wrong terminals on the back of the controller, the relays and elements will add heat to the wrong sections of the kiln. This will cause the kiln to stall.

To check that the thermocouples are connected to the correct terminals, compare the back of the controller with a wiring diagram for your kiln model. Trace each set of thermocouple wires on the back of the controller to the thermocouples in the kiln.

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