Shortly after Christmas, I fired a load and all was well. BUT when I tried to fire it again I got an error message. I looked it up and turns out I needed a thermocouple. Lots of google searches convinced me that I could do this on my own. I contacted the kiln manufacturer and order the part. No problem! I was a little leary because the replacement part didn't look exactly the same but since I ordered it directly from the mfg, I felt pretty confident.
Two firings later, still good. Cost - 25$!