Ben Shelton on sun 25 jun 06
Does anyone know of a way to bypass all the electronic controls on a duncan
EA-1029n kiln?
Mine is getting stuck @ about 1250F and is driving me crazy. I want to
bypass the electronic controls and run it manually to find out if the
controls or the elements are to blame?
Last time I fired it was a litlle slow but made it to bisque in a reasonable
time.
Thanks,
Ben
Dan Bowen on mon 26 jun 06
First instinct is a element problem (old or broken) or the voltage is not as
required.
If kiln is 240 volt and you only have 215v at the top temp. you dont have
the amperage to continue the climb. You need to test the full load amperage
avalable(or have a qualified electrician do it ). A multimeter test to
terminals on the plug ( note this can kill you if you dont know how)can tell
you if the avalable voltage at full load(all elements on ) is what the kiln
needs. You can get a false reading if the kiln is not pulling the full
load. I required a boost transformer on a similar kiln to get the voltage
up to 240 volts.
Dan Bowen
Weirwood Station Pottery
Eastern Shore of Virginia
dan @ weirwoodstation . com remove spaces
Ben Shelton on tue 27 jun 06
I measured last night and no load voltage was 238~239
full load voltage was around 231~233
Seems correct to me.
WHat do you think?
Arnold Howard on thu 29 jun 06
From: "Ben Shelton"
> Does anyone know of a way to bypass all the electronic
> controls on a duncan
> EA-1029n kiln?
> Mine is getting stuck @ about 1250F and is driving me
> crazy. I want to
> bypass the electronic controls and run it manually to find
> out if the
> controls or the elements are to blame?
Ben, is the controller locking at 1250F, or is it gradually
slowing down in that temperature range?
If you hooked up an ammeter to the kiln, you would know if
all the elements were still firing when the kiln slowed down
at 1250F.
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com
Ben Shelton on fri 30 jun 06
It is slowing down gradually up to 1250f. I graphed the temp/time and it
fired slower and slower as it went along.
Ben
Maurice Weitman on fri 30 jun 06
At 12:11 -0400 on 6/30/06, Ben Shelton wrote:
>It is slowing down gradually up to 1250f. I graphed the temp/time and it
>fired slower and slower as it went along.
Hello, Ben,
It is perfectly reasonable that kilns will take longer to heat as the
temp increases.
Extremely long times, though, would indicate either poor supply
(which I believe you ruled out), bad wiring, or failing/failed
elements.
If this the same kiln you wrote about having trouble firing in May
2005. did you ever check its wiring to the wiring diagram Arnold made
mention of?
Regards,
Maurice
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