Since we recently moved to a new studio location, we discovered that we have a different 220 plug than we had at our last studio. That means that we'd either have to call in an electrician to replace the plug in our new work area, or replace the old cord to our kiln, with a new one that would fit.
We recommend calling an electrician. This could become a fire hazard if improperly replaced, or damaged during replacement. We will not take any responsibility for damage done by anyone reading this tutorial and working on their own kiln. If someone is to hire an electrician to replace the power cord to their kiln, feel free to use our tutorial as reference; to insure that the electrician replaces your cord correctly.
First of all safety is important when working with electricity! Make sure you buy a new power cord that can handle the amps and volts that your kiln uses. We went to Home Depot and found a cord that would work for our kiln, right in the electrical department. We took a picture of the new outlet so that we knew the plug configuration. When you buy a new power cord, NEVER test out the "fit" by plugging in the power cord into the outlet unless the power is turned off to that outlet, first. Shut off your kiln and unplug it before doing any work on it.
Our new outlet. We took this picture with us to Home Depot as reference.
You will need to remove the screws on the kiln sitter so that you can work. I placed the kiln sitter on a paint can so that I wouldn't put too much stress on the wires that were still connected to the kiln. The paint can just happened to be the perfect height.
Unscrew the strain relief on the outside of the kiln sitter. Once you are done rewiring, replace the strain relief. Always take a picture of the inside of your kiln sitter to use as a reference when replacing the wires. Once done, you can begin removing the wires.
Unscrew the thick black and white wires first, it will make it easier to get to the green wire.
My kiln had three green wires on one screw that I had to remove since the ground wire to the new plug ended up being on the very bottom.
Once everything is removed, carefully pull the old cord out of the side of the kiln sitter. Then carefully feed the new power cord into the same spot.
The green wires are the ground wires. To find the ground wire on the power cord, look at the plug on your new cord. The prong that is by itself on the plug is the ground wire. It is also the center wire. So trace that center wire down to the end and mark it so that you do not mix it up when replacing.
Then I replaced the wires that were where the black and white wires were, first. It doesn't matter which wire you use as long as the center wire is put on the screw with the other two green wires. Screw the wires in securely. Then replace the green ground wires making sure you replace the wires in the same order as you removed them.
Replace the strain relief on the outside of the kiln once all wires are replaced and screw the kiln sitter back onto the kiln. Once done, plug the cord into the socket and turn on your kiln's power.
Harrach Glass is a glass art studio located in scenic Santa Fe, New Mexico. We offer classes where you can learn how to create your own leaded or foiled stained glass windows! We also make custom stained glass windows locally and sell art glass gifts online.