No Display

• 1). Turn on the circuit breaker, located on the kiln's switch box. Check the display; if nothing shows in the controller pad, the kiln fuse may need to be replaced.
  
  
• 2). Press down on the fuse holder and twist it halfway in a counterclockwise direction to remove the fuse.
  
  
• 3). Look at the fuse wire; if it is frayed or cut in any way, the fuse needs to be replaced.
  
  
• 4). Test the fuse, if desired, with either a digital or analog ohmmeter placed against its ends. If the digital ohmmeter reads less than 1 ohm, or if the analog ohmmeter reads 0 ohms, the fuse has to be replaced.
  
  
• 5). Replace the fuse with a new AGC 1/2 A 250V A model to fix this problem.
  
  

Circuit Breaker

• 1). Test the kiln for circuit breaks. If the kiln switch box becomes unusually warm, or the circuit breaker stops working during the test, the circuit may need to be replaced.
  
  
• 2). Hold the plug connector by hand and unplug it from its power source.
  
  
• 3). Open the kiln switch box and search for a wire touching the box's top or another part of the interior; if this is the case, the loose wire caused a circuit shortage and needs to be replaced or repaired by a licensed electrician.
  
  

Wrong Temperature

• 1). Check for improper temperature readings on the controller display. If it is clearly giving you numbers that are not accurate, the thermocouple may need adjusting.
  
  
• 2). Unscrew the switch box screws with the Phillips-head screwdriver. Remove the box to reveal the thermocouple ceramic block.
  
  
• 3). Measure with a ruler how far the thermocouple is stretching into the kiln firing chamber. If the thermocouple has a 1/8-inch diameter, it should stretch into the chamber between 1/2 inch and 5/8 inches, and if it has a 1/4-inch diameter, it should go into the chamber by 1 inch or more. Adjust the thermocouple, if necessary, to fix this problem.
  
  

Replacing Controller

• 1). Pull the plug connector out from its power supply to unplug the kiln.
  
  
• 2). Take out the four screws from the controller plate with the Phillips-head screwdriver. Remove the faceplate by hand.
  
  
• 3). Unplug the two plugs on the back of the controller board. Undo the two individual wires from the back of the board.
  
  
• 4). Attach the two wires to the new Paragon-certified temperature controller. Plug the two plugs into the new controller.
  
  
• 5). Place the new controller back inside and screw its plate back in with the Phillips-head screwdriver to finish.