I just attempted a ^6 firing in my very old Cress B23H. It was an inherited kiln that was supposedly maintained on a monthly basis. It was owned by an 87 year old ceramist who gave it to me when she got a replacement kiln from a friend. I've used it for bisque and low fire glaze firings up till now. The ^6 firing failed at 2117 degrees F. The controller had a "Firing too long"
message. I am guessing that the elements are old and tired and only reached ^1. This was actually a test firing to see if the kiln would reach ^6 before I sold it.
The question here is...would it be worth replacing the elements at about $170 for the set and selling the kiln, or just getting rid of the kiln. I have a ^10 Cress waiting to replace the B23H. It too is used, but in much better condition. I will probably be using it at ^6 for the rest of its life.