Instruction manual

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Error Messages
BAdP / Bad Programming
The kiln will not fire because the Ramp-Hold program
just entered has a rate of 0000 in segment 1. Program the fir
-
ing again.
EtH / Electronics Too Hot
The temperature of the electronic circuit board is above
185°F/85°C. This could damage the controller, so the firing
has been stopped. To prevent this, keep the firing room
cooler. Use better ventilation.
FaIL / Thermocouple Failure
The thermocouple, or temperature sensor, failed during
firing. Causes:
I
Defective thermocouple or disconnected/loose wires
I
Defective controller
I
Electrical noise
Thermocouple Paperclip Test
Check the thermocouple wire
connections. (See your kiln in
-
struction manual.) If connections
are tight, perform this test:
1 UNPLUG the kiln or discon-
nect the power. Remove the
controller. (See photo at far right.) Remove the two
thermocouple wires from the back of the controller.
2 Cut a thin paperclip in half. Insert a U-shaped
paperclip piece, or other piece of thin wire, where you
removed the thermocouple wires.
4 Plug in the kiln. If the controller displays room tem
-
perature, replace the thermocouple. If it shows
FaIL , replace the controller.
TCR / Thermocouple Reversed
Thermocouple lead wires are reversed.
FtL / Fired Too Long
This message appears when both of the following condi
-
tions are met:
I
The temperature rise is less than 27°F/15°C per hour
I
The firing is 4 hours longer than programmed
See “Controller turns on. No heat in kiln,” page 11.
PF 1 / Power Failure
The power failed during firing and temperature dropped
more than 180°F/100°C by the time the power came back on.
PF 2 / Power Failure
The power failed during firing and kiln temperature was
below 212°F/100°C when the power came back on.
TcO / Thermocouple Failure
The thermocouple failed during the IdLE display.
Selecting °F or °C
Display
The controller can display temperature in either °F or °C.
If your controller shows a small display dot in the lower right
corner of the display, the temperature shown is °C. No dot
means °F. To change temperature display:
1 UNPLUG kiln or disconnect power.
2 Remove the four screws that hold the controller to the
front of the kiln. Carefully remove the controller
from the kiln. Leave wires attached to the controller.
3 Look at the back of the controller. A plastic jumper on
the back of the board determines the type of temper-
ature display. When the jumper connects two
pin-type terminals, display reads °F. When the
jumper is removed, display reads °C. Remove or in-
sert the jumper as desired. (You can purchase the
jumper from a computer supply store if necessary.)
4 Install the controller being careful not to jar compo
-
nents on the back of the controller against the kiln
case.