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Event E A3
Safety circuit operational
When the maximum program temperature is exceeded by more than 20°C, the safety
circuit becomes operational and switches the kiln off. This prevents your kiln from
overfiring.
Possible causes for over-temperature:
• Kiln safety contactor stuck in "ON" position
• Contactor is permanently operational
Attention!
As a precaution, do not use the kiln until the cause of the error message has been
clarified. This error message always requires a technician on site.
Event E A4
Heating rate too low on full power
This error message refers to a kiln problem.
Possible causes:
• Defective mains fuse or phase, broken heating elements
• Heating elements too old (high temperatures)
• Thermocouple or thermocouple wiring short-circuit
• Defective contactor (often occurs during firing process)
Event E A5
Kiln does not follow programmed heating rate
Other than Event A4, values for the heating rate have been set too high and the kiln
cannot follow the programmed values. This message is displayed only if enabled in
the configuration.
Event E A8
Rate has been continued automatically
If the kiln cannot follow the heating rate, the ramp up is stopped. If the controller finds
the kiln is unable to catch up with the temperature the firing will continue, and this
message will be displayed for one minute.
EN - 01/2024
Appendix 2 / 4
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