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Lesson Plans

Re: technology...eating out of bowls

[ Thread ][ Subject ][ Author ][ Date ]
Wed, 24 Mar 1999 16:56:22 EST

It sounds like a classic case of overfiring. The kiln probably does not work
at this point because what caused the kiln to shut down during the last fire,
was that the elements burned out in the intense heat. It has to get way too
hot if you have warped kiln shelves and supports. What probably happened was
the kiln sitter jammed and the melted cone did not activate the shut off
switch. The kiln just ran on high until the elements self destructed
shutting them down. The over fire had nothing to do with the vent fan being
off or on, or the order the switches were turned on. It would have been good
if the custodian noticing the extreme heat of the kiln shut off the kiln (with
the switches or circuit breaker) as well as the vent fan.

Check your elements and I bet you will find they are broken and will not carry
a current any longer. New shelves, new elements, and check the operation of
the kiln sitter, and you should be back in business.

Bill R.
Amherst NH