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ST216 User Handbook
12
Error Messages
Heating error. The kiln temperature is not in-
creasing as required. The kiln has been on full
power for 15 minutes but the temperature has not
increased by at least 2°C.
If the ST216 detects a problem the buzzer will sound and an error message will be
displayed. This error message will alternate with a display of kiln temperature. The
program number display will show where the error occurred.
Possible causes: kiln door or lid not closed properly or door switch faulty or needs
adjusting. Heater element open circuit or elements too old. Electrical power phase
failure or contactor failure.
Thermocouple or thermocouple wiring open cir-
cuit. Get thermocouple and wiring checked.
Replace thermocouple if necessary.
Thermocouple reversed (kiln temperature appar-
ently less than
–40°C). This is an installation
fault. Get wiring checked.
Cooling error. The kiln has been on zero power
for 30 minutes but the kiln temperature has not
fallen by at least 1°C.
Possible causes: contactor failure (contacts welded?) or thermocouple connection
intermittent or high resistance.
Kiln temperature overshoot. The kiln tempera-
ture exceeds the desired temperature by a preset
limit as shown below:-
To obtain more information on the error operate the
◄ key. The first press will display
the maximum temperature reached in the firing. The second press will display the
length of time that the error has been present. The buzzer will mute.
Desired Temperature
Overshoot allowed
More than 100°C but less than 200°C
+50°C
More than 200°C but less than 600°C
+30°C
More than 600°C
+20°C
Less than 100°C
+60°C
Содержание ST216
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