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Pottery/Error E-1 on Model V6-CF Series 700 Controller


Hello! I hope you can assist me with a recent error code I received on my electric kiln. I own an Olympic S18E / The controller is Model V6-CF Series 700.
I have had this kiln since 2009 (new), I replaced the relays in 2010.
My Issue: The last firing I did had an error code E-1, it did not fire to full ^6 temp. I did the full power test and all the elements are glowing and seem to be fine, so where is the problem? I hate to start replacing parts that are still good, I'm thinking it might be the thermocouple? Any advice or recommendations would be greatly appreciated!

Dear Lea,

    Thank you for your recent question. Yes, the thermocouple could be the problem. But before you replace it, you should also do the following checks. First, check the voltage connected to your kiln. An E-1 reading can be caused by a drop in voltage during the firing, resulting in a temperature drop or the kiln not increasing in temperature during the each ramp. Next, check the thermocouple to see if it is positioned correctly. Sometimes, they come ajar and will not read properly. With each test, you can re-fire your ware. If the kiln works after the voltage check and correction, if needed, then your ware will fire to the correct maturing temperature. The same goes for adjusting the thermocouple and testing with a re-fire.

    If either of these do not solve your problem, then your problem most likely lies with the thermocouple itself. I hope this answers your question and gives your some ideas to check before you replace a part that may not be bad. If you have further questions, you are welcome to contact me at any time. Always at your service. Good luck.

Ms. Ti Phillips
Earth Stoke 'N Fire Pottery Studio and Artist Retreat


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Ti Phillips


Will answer any questions on hand building, wheel, glaze, firing. Speciality questions to include those in glaze calculation and development, firing techniques. Please do not send questions on identifying pottery. Although I would love to add this to my question topics, I have a retreat to run as well as the studio and volunteering on AllExperts, and therefore do not have the available time to research indentification and marks. Thank you for understanding.


Experience includes 30 years in pottery design and education. Have taught online and studio classes worldwide for the last 20 years. Own a pottery retreat specializing in firing techniques. Have 12 years solid experience in glaze calculation and formulation as well as problem solving in glaze chemistry. I am the first potter in the United States to have developed a complete package of pottery equipment blueprints for a studio. The blueprints include wheels, kilns, studio furniture, wedgeboards, raku kilns, slab rollers, ball mills and studio tools.

Alliance of Pottery Artists Worldwide Association

Ceramic Industry - PPP Wyndstryder Press - Pottery Journal

University of Sciences and Art's of Oklahoma, studied under Professor Jaymes Dudding.

Awards and Honors
Potter of the year with APAWA, various awards for showmanship and design.

Past/Present Clients
Available upon request.

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