Description
Kiln temperature increasing slower than 12 degrees F per hour when ramping up
Probable Causes and/or Correction(s)
This is a kiln heating problem, not a controller problem. Do the Full Power Test to check elements and relays. Low or dropping voltage to the kiln could also be the cause. A thermocouple reading incorrectly or improperly placed may also be the cause.
Description
Kiln temperature 50 degrees F above hold temperature
Probable Causes and/or Correction(s)
A relay latched in the on
position may cause this error. Another possible cause is if the kiln lid is opened for rapid cooling, then closed, such as for glass firings.
Description
Kiln temperature 50 degrees F below hold temperature
Probable Causes and/or Correction(s)
Description
Kiln temperature 50 degrees F above previous hold when ramping down
Probable Causes and/or Correction(s)
A relay latched in the on
position may cause this error. Another possible cause is if the kiln lid is opened for rapid cooling, then closed, such as for glass firings.
Description
Kiln temperature 50 degrees F below traveling set point when ramping down
Probable Causes and/or Correction(s)
Description
Kiln temperature 50 degrees F above traveling set point
Probable Causes and/or Correction(s)
Stuck relay or stuck output. If using zone control, then the outputs or t/c's may be in the wrong zones.
Description
Software Error
Probable Causes and/or Correction(s)
Check the selected program and reprogram, if necessary. If error persists or program does not hold in memory, controller may need to be returned to factory for service.
Description
Problem with thermocouple leads
Probable Causes and/or Correction(s)
This generally indicates the thermocouple is connected incorrectly, possibly reversed. Ensure the thermocouple extension wires are connected correctly to the controller and at all connection blocks back to the thermocouple.
Description
In cone fire mode, temperature decreasing in last segment
Probable Causes and/or Correction(s)
If the kiln has a kiln-sitter, it may have turned the kiln off before the controller did. Other possible causes are broken element or relay failure.
Description
Software thermocouple selection does not match the hardware thermocouple jumper selection
Probable Causes and/or Correction(s)
The jumper on the circuit board and the setting for thermocouple TYPE in the software do not match.
Description
Error in readings
Probable Causes and/or Correction(s)
Check for reversed thermocouple leads. If leads are correct, then the analog to digital converter on the circuit board may not be functioning and the controller may need to be returned to the factory for service.
Description
Power loss during EEprom write
Probable Causes and/or Correction(s)
Turn the controller off and back on. Recheck the selected program and reprogram, if necessary.
Description
Invalid program variable
Probable Causes and/or Correction(s)
Reprogram all eight segments of the program being fired. If error persists, controller may need to be returned to factory for service.
Description
Board temperature too high.
Probable Causes and/or Correction(s)
The control box temperature may be too hot or the limit temperature may need to be reset. If the room temperature is very hot, aiming a fan at the control box may decrease the temperature.
Description
Hardware error.
Probable Causes and/or Correction(s)
Controller will need to be returned to the factory for service.
Description
Microprocessor memory does not match program storage memory (EEprom)
Probable Causes and/or Correction(s)
Reprogram and try to fire again. If error persists, controller may need to be returned to factory for service.
Description
Invalid 16-segment firing attempted.
Probable Causes and/or Correction(s)
Reprogram and restart firing.
Description
ERRP and the current temperature are alternately flashing. To clear the display, press the “1” key. The firing in progress will continue.
Probable Causes and/or Correction(s)
Power outage; kiln is still firing.
Description
Steady FAIL indicates all t/c’s have failed. If FAIL alternately flashes with TC 1, then t/c one (top section) has failed. If FAIL alternately flashes with TC 2, then t/c two (middle section) has failed. If FAIL alternately flashes with TC 3, then t/c three (bottom section) has failed.
Probable Causes and/or Correction(s)
Check the board temperature in the Menu. If board temp displayed with bd T is approximately room temperature, then the t/c is defective. If bd T display shows a high temperature or FAIL without showing room temperature, circuit board is defective.
Description
Key was held too long or is stuck.
Probable Causes and/or Correction(s)
If problem persists after releasing key, controller may need to be returned to the factory for keypad replacement.
Description
Power failure. Firing has stopped
Probable Causes and/or Correction(s)
Power was lost during a firing and the kiln temperature was below 1400F or the kiln temperature dropped more than 250 degrees during the power outage.