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Video Support

This video shows how to change an element holder in an L&L kiln. There are two methods shown.

Question: If the element holder is replaced by chipping off the lower "lip" will the holder remain in place? It seems that unless some type of cement is used it will just work its way out and fall into the kiln. Would you please elaborate?

Answer: What is left after you follow this procedure is a serrated edge. That actually does an excellent job of holding in the groove. This works in almost all cases - you can always cement it if it doesn't work. One of the great things about these holders is that, when you are done, you have a functional groove - stronger than the underlying brick itself.

This video is useful for changing a thermocouple on any L&L kiln - in particular an eQuad-Pro or a School-Master Kiln.

Be sure to maintain proper polarity.

In the USA: Yellow Wire = PLUS (+) Red Wire = MINUS (-) The thermocouples are marked with a (+) and (-). Also the negative (-) is marked with a red marker. The negative wire is MORE magnetic than the positive wire.

For more information about thermocouple polarity, color coding, and markings see this page.

Parts

See this page for the standard type K thermocouple.

See this page for the mounting hardware.

See this for all thermocouple parts and

This video shows you how to remove an L&L easy-fire, eQuad-Pro or School-Master panel to send to factory for service.

For the previous panel design with a thermocouple terminal strip, watch from the beginning.

For the new panel design without a thermocouple terminal strip, skip to 2:13

How to check the operation of a control transformer on an L&L automatic kiln. Applies to all automatic kilns that are not 480 volts. The control transformer reduces the incoming line voltage from 240, 208 or 220 volts to 24 volts for the control and 12 volts for the relays. See this page for more detail.

Parts
  • See this page for 12 KVA control transformers used on kilns with three sections or less.
  • See this page for 30 KVA control transformers used on kilns with four or more sections.
  • The most important debugging tool in any toolbox is a trusty multimeter. A multimeter can measure continuity, resistance, voltage and sometimes even current, capacitance, temperature, etc.