After I researched the replacement thermocouple part number for this particular kiln, I ordered 2 online [one for now and one for next time]. The front of the kiln opens like a door once you take out several short screws. Skutt supplies great diy instructions online and it is quite straight forward. The picture below is what a new thermocouple looks like and the bottom picture is the overworked one that actually broke. I will keep an eye on the number of firings and replace it way before it gets that bad.....so maybe at 150 firings not 210! I do keep a written log on the firings for such things like this. We were only down for a week.