LIT Posted May 22 Report Share Posted May 22 Our school has two HF 105 kilns. Worked great for about 5 years and started having temp issues. Very long story short, turns out even though the power box said 240, we weren’t getting that amperage. Electricians installed a booster so now we do. Here’s the weird situation: according to witness cones, kilns aren’t reaching 04 in bisque (they get to 06 and sometimes near 05). But they reach 5 and 6 no problem in the glaze fire. Elements are good, thermacouples have been replaced, relays as well. We have offset the temp 20°, programmed holds, I do candle for a while on bisque as well. Why would the kilns struggle to reach 04 but reach a hot cone 5/6 no problem? Thoughts? Quote Link to comment Share on other sites More sharing options...
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