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Showing results for tags 'relay'.
Hi all, first time posting. I recently aquired and olympic 1818HE with a Bartlett rtc1000 controller on it. I know the controller is made more for glass or heat treating kilns but have seen it used for ceramics without problem. I had a few error codes in my first two firings, the first was e3 during my final hold at cone 04. The code chart states that the temp fell 50* below final hold temp during the hold and the chart says that’s a relay failure. I did a full power test at r9999 to f1000 and all of the elements glowed a beautiful red. I assumed that because the kiln lives in a metal shed outside that because of a cold front that blew in that night and a peep hole being open, it was a fluke. So I loaded a glaze round and set a hold for two hours at 200 to ensure my glaze was dry before going to cone 05. The kiln then threw error code e1 saying the ramp speed was less than 12* per hour. I believe based on the amount of time between check ins, that the kiln didn’t make it above 300* I did another full power test tonight and the elements all looked great. But when the temp got to ~300* the elements all shut off and the temperature started changing between 230-310 and in between rather rapidly. The elements never turned back on but the kiln wasn’t off. Im thinking this is all a thermocouple issue but could use some advice.
A couple years ago, I got a Duncan EA-820 manual kiln off of Craigslist. Paid about $50 for it. My garage was already wired with a 240v outlet, so I was excited to start exploring pottery. However, when I turned the kiln on, I heard a clicking so rapid, it would more aptly be described as a chattering. After some basic troubleshooting and Googling, I found it was the relay which was clicking. Thinking, perhaps the relay was bad, I replaced it. The new one not only clicked repetitively, but promptly began to melt. Frustrated, I moved on to another project and then life got in the way. My kids have recently developed a huge interest in pottery, so I'm giving the kiln another go. I've been able to find wiring diagrams online and everything internal to the kiln appears to be wired correctly. I've got a 240v outlet on a 40amp breaker with 8 guage wire, so that seems to be in line as well. Any idea what could be causing the relay to act this way? I'm stumped and before I go down a rabbit hole, I thought I would check to see if maybe I was missing something obvious or if anyone in the forum had gone through a similar experience.