Frank Gaydos on sun 12 feb 12
I have a L&L Model JD2927 with a=3D20
DynaTrol Multi-Program Zone Control . 208Volts, located in a college art ro=
=3D
om.=3D20
=3DC2=3DA0=3D20
It has been driving me crazy for awhile now.=3D20
I get intermittent ERR1 and ERR8 error codes. These codes mean it is losing=
=3D
heat when it should be gaining.=3D20
I replaced the elements, switches, and thermocouples, along with new plugs =
=3D
between sections into the control box.=3D20
I'm only trying to get to cone 04.=3D20
It seems to get near the final temperature but cuts out.=3D20
=3DC2=3DA0=3D20
I hired a service guy from the place I purchased the kiln. He was surprised=
=3D
I could not troubleshoot the kiln because I've been doing it for 30 years =
=3D
now.=3D20
He could not find a problem.=3D20
On a hunch I swapped out the new thermocouples for a set from a working kil=
=3D
n. It fired off great. I swapped them back to fire the smaller kiln.=3D20
Just to be sure I swapped them back again and re-fired the larger troubleso=
=3D
me kiln and got the dreaded ERR8 error again.=3D20
=3DC2=3DA0=3D20
So I guess its NOT the thermocouplers?=3D20
=3DC2=3DA0=3D20
Has anyone had this experience and what was the outcome?=3D20
I have 5 other kilns, all work fine.=3D20
I did call the tech guy in Ca. and he said over the phone that it sounded l=
=3D
ike the wiring harness!?=3D20
Any thoughts? Arnold?=3D20
Frank Gaydos=3D20
"Men never do evil so completely and cheerfully as=3D20
when they do it from religious conviction"=3D20
Blaise Pascal.=3D20
http://home.comcast.net/~frankgaydos/index.html=3D20
Liz Gowen 1 on sun 12 feb 12
Frank did you talk to L&L they are located just across the river from =3D
you now I think in Swedesboro NJ...Liz Gowen
-----Original Message-----
From: Clayart [mailto:Clayart@LSV.CERAMICS.ORG] On Behalf Of Frank =3D
Gaydos
Sent: Sunday, February 12, 2012 3:27 PM
To: Clayart@LSV.CERAMICS.ORG
Subject: Troubled kiln.
I have a L&L Model JD2927 with a
DynaTrol Multi-Program Zone Control . 208Volts, located in a college art =
=3D
room.=3D20
=3D20
It has been driving me crazy for awhile now.=3D20
I get intermittent ERR1 and ERR8 error codes. These codes mean it is =3D
losing heat when it should be gaining.=3D20
I replaced the elements, switches, and thermocouples, along with new =3D
plugs between sections into the control box.=3D20
I'm only trying to get to cone 04.=3D20
It seems to get near the final temperature but cuts out.=3D20
=3D20
I hired a service guy from the place I purchased the kiln. He was =3D
surprised I could not troubleshoot the kiln because I've been doing it =3D
for 30 years now.=3D20
He could not find a problem.=3D20
On a hunch I swapped out the new thermocouples for a set from a working =3D
kiln. It fired off great. I swapped them back to fire the smaller kiln.=3D2=
0
Just to be sure I swapped them back again and re-fired the larger =3D
troublesome kiln and got the dreaded ERR8 error again.=3D20
=3D20
So I guess its NOT the thermocouplers?=3D20
=3D20
Has anyone had this experience and what was the outcome?=3D20
I have 5 other kilns, all work fine.=3D20
I did call the tech guy in Ca. and he said over the phone that it =3D
sounded like the wiring harness!?=3D20
Any thoughts? Arnold?=3D20
Frank Gaydos=3D20
"Men never do evil so completely and cheerfully as when they do it from =3D
religious conviction"=3D20
Blaise Pascal.=3D20
http://home.comcast.net/~frankgaydos/index.html=3D20
Arnold Howard on mon 13 feb 12
On 2/12/2012 2:27 PM, Frank Gaydos wrote:
> On a hunch I swapped out the new thermocouples for a set from a working k=
iln. It fired off great. I swapped them back to fire the smaller kiln.
Frank, have you tested the thermocouples to be sure they are
synchronized correctly to the relays? If a thermocouple senses that a
section of the kiln needs more heat and the wrong elements turn on, the
kiln will fire unevenly and stall.
Please let us know how you end up solving this problem.
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com
Neil Estrick on tue 14 feb 12
Make sure your sections are plugged in to the right receptacles. If you'v=
=3D
e=3D20
changed out everything possible- elements, thermocouples, thermocouple wi=
=3D
res,=3D20
etc., then you may be looking at a computer problem. That's not to say th=
=3D
at=3D20
there's something wrong with the computer necessarily. It may be getting =
=3D
some=3D20
interference somewhere. If that's the case, you may notice random jumps i=
=3D
n the=3D20
temperature readout. You'll have to sit and watch the kiln at the high en=
=3D
d of your=3D20
firing and see if it happens. There will be random changes to the tempera=
=3D
ture=3D20
readout for a split second, at random intervals. It's a sign that the com=
=3D
puter is=3D20
either getting interference, or it's worn out and should be replaced. I'v=
=3D
e seen it=3D20
happen both ways. The first thing to try is grounding the circuit board, =
=3D
if it's not=3D20
already. Run a grounding wire from the Center Tap on the circuit board to=
=3D
any=3D20
grounding screw in the panel. If that doesn't help, then you may need a n=
=3D
ew=3D20
computer.
Neil Estrick
L&L Distributor, Kiln Repair Tech
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