3
Look at the door
switch from above. You
will see a disk with an in-
dentation. When the
switch arm moves into
the indentation, the ele-
ments should turn on.
As you open and close
the door, watch the disk
so that you will under-
stand which direction to
adjust the disk.
4
Loosen 2 allen
screws that hold the disk
to the door hinge shaft.
5
Rotate the disk to
change the position of
the indentation. Then
tighten the allen screws.
6
Repeat step 2 to test
the switch. If the ele-
ments do not turn on
when the switch arm is
in the indentation, then
disconnect the power to
the kiln and look for a
disconnected wire. If the
wiring is okay, replace
the switch. (You can
also test the switch with
an ohmmeter. See in-
structions in the next
column.)
7
Reinstall the switch cover.
The Door Push-Button
Safety Switch
The door safety switch is mounted inside the front of the
switch box.
1
Program the kiln to fire at full rate so the elements will turn
on and stay on without cycling. (Please consult your manual
to program a full rate.) After the kiln has fired for about a min-
ute, open and close
the door until you
hear a clicking noise.
(The relays click
when they turn the el-
ements on or off.)
The elements should
turn off when the
door is opened 1” -
2”.
If you do not hear
the clicking, press the
safety switch button.
If you still do not hear
the clicking, then dis-
connect the power to the kiln and look for a disconnected wire.
If the wiring is okay, replace the switch. (You can also test the
switch with an ohmmeter.
See instructions in the
next column.)
2
The switch is activated
by the safety switch lever.
Gently bend the lever with
pliers to change how far
the door opens when the
elements turn off.
Bending the lever toward
the switch box increases
the distance the door
opens when the elements turn off.
Testing the Safety Switch
with an Ohmmeter
First, become familiar with the ohmmeter. Touch the ohm-
meter probes together. That is the reading you should get
when the door/lid is closed. An analog (needle indicator) ohm-
meter will show the needle moving all the way over. A digital
meter will show 0 - 14 ohms.
Separate the ohmmeter probes. That is the reading you
should get when the door/lid is open.
1
UNPLUG kiln/disconnect power.
2
Remove the door/lid
switch cover.
3
Place ohmmeter leads on
the two switch terminals.
(Tilt switch: Touch an ohm-
meter probe to the wire in-
side each wire nut.)
4
Have someone open and
close the door or lid. You
should get continuity on the
ohmmeter when the lid/door is closed. If not, replace or adjust
the switch.
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Mesquite, Texas 75149-1122
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The rotary safety switch with door closed.
The rotary safety switch with door open.
A close-up view of the door
push-button safety switch.
Testing the door push-button
safety switch.
Testing the rotary safety switch.
Tightening the allen screws.
