L&L Kiln Troubleshooting Actions

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  1. Make sure the On/Off switch is turned on.
  1. Try leaving the toggle switch on for 30 seconds without pressing any buttons.
  2. This will give the control...
  1. The control fuse is normally located on the side of the control box.
  1. Check the tightness of all connections. Do this by wiggling the connector to make sure it is not loose.
  1. Make sure power cord is plugged in.
  2. Reseat the plug. Pull it out of the receptacle and put it back it....
  1. Make sure the circuit breaker or fused disconnect switch is turned on.
  1. Check voltage across the top center tap and either of the two top taps.

The control board needs to be replaced if:

  1. Carefully examine thermocouple tip. This is the exposed welded joint at the end of the thermocouple that is not...
  1. Make sure you have programmed the kiln properly and it is supposed to be firing.

1. Check for voltage (12 volts DC) between the output contacts (AC1 & AC2 marked on the control board) ground (any...

Your power relays are one of the most important components in your kiln.

  1. Plug Peepholes in the kiln to prevent drafts.

Fix lid seal if a bright red glow is visible around the seal when kiln is operating and/or excessive heat loss can be...

  1. Empty the kiln.
  2. Turn kiln on using a fast program such as FAST GLAZE (USr3) until elements are red....
  1. If uneven firing occurs persistently, vary methods of loading weight to match the firing characteristics of the...

Use cone packs in all sections (top, center, bottom) of the kiln and keep records of what happens.

  1. On the next firing make up "cone packs" for each thermocouple.
  1. Unplug kiln.
  2. Trace wiring for missing or bad connections.
  3. Check wiring against wiring diagram....

Plug element holes if they are too large.

  1. Make sure peepholes are plugged with peephole plugs.
  2. Make sure hole for vent is proper. Check Vent-Sure...
  1. Unplug the kiln.
  1. Unplug kiln.
  2. Remove the four #6 screws that hold the control in place from the front face of the control...
  1. Unplug kiln.
  2. Remove the control box and the insulation panel.
  3. Remove the wires to the relay.
  1. Unplug kiln.
  2. Remove the control box and remove the insulation panel.
  1. Unplug kiln.
  2. Remove or hinge open the control box.
  3. Remove the Thermocouple Lead Wire from...
  1. Unplug kiln.
  2. Remove the Control Box.

When ordering a new holder provide model number of kiln and length of the element holder. See the Parts List for this...

  1. Remove the kiln sections.
  2. Take the old bottom of the stand.
  3. Put the new bottom on the stand....
  1. Remove one of the Cotter pins from the Hinge Bar.
  2. Pull out the Hinge Bar.
  3. Unscrew the chains from...


  1. Dig out any loose particles with a small knife.
  2. Brush and vacuum the surface of the brick clean to remove...
  1. There are two normal tension adjustments for the Easy-Lift Spring Hinge.

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Standard Practice at L&L

The following is the standard practice describing thermocouple polarity for Type K...

Running a paper test can be a great way to troubleshoot your kiln if you do not have access to a multimeter.

  1. On an L&L manual kiln with INF switches the ...

The KISS system comes with a socket and chip that plugs into a socket located on the top back of the DynaTrol board.

A replacement DynaTrol control will typically have our standard configuration for Type K thermocouples, 18 Deg F...