12 Cone-Fire / Ramp-Hold
To return to
from an FE code
Try pressing any key. If that doesn’t work, turn the power
off for 10 seconds. Call the factory if the error message re-
mains when you turn the power back on.
If you get an
message, check the wire connections
going from the back of the controller to the thermocouple.
A loose connection can cause the
message.
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 2 hours longer than programmed.
Programming a cooling segment targettemperaturethat
is below or even close to room temperature can also trigger
the
message.
See “Controller display turns on. No heat in kiln,” page
18.
HtdE / High Temperature
Deviation
Causes:
I
During a heating-up ramp or a hold, the temperature is
100°F / 56°C above the programmed temperature.
I
During a cooling-down segment, the temperature is
100°F / 56°C higher than the segment’s starting temper-
ature.
I
A fast rate caused the controller to overshoot the target
temperature.
Also, check for a stuck relay.
PF 1 / Power Failure
The power failed during a cooling segment, and the kiln
cooled past the target temperature while the power was off.
The kiln will not resume firing. To return to the
dis-
play, press any key.
PF 2 / Power Failure
The power failed during firing and kiln temperature was
below 212°F / 100°C when the power came back on. The
kiln will not resume firing. To return to the
display,
press any key.
PF 3 / Power Failure
The power failed during firing and temperaturedropped
more than 72°F / 40°C by the time the power came back on.
The kiln will not resume firing. To return to the
dis-
play, press any key.
tC / Thermocouple Failure
The thermocouple failed during the
display. See
the "paperclip" test under "FaIL," left column.
Error Messages
bAdP / Bad Programming
The kiln will not fire because a) the Ramp-Hold pro-
gram just entered has a rate of 0000 in segment 1, or b) the
target temperature in segment 1 of Ramp-Hold is lower
than the current temperature.
EtH / Electronics Too Hot
The circuit board temperature is above 176°F / 80°C.
Press any key to return to
.
To lower the board temperature, use a fan to blow air
across the kiln switch box into the louvers. (But do not blow
air into the kiln’s peepholes.) If you have more than one
kiln in the room, place them farther apart. Never allow the
firing room temperature to exceed 110°F / 43°C. (Measure
room temperature three feet away from the kiln.)
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 connec-
tions are tight, perform this test:
UNPLUG the kiln or dis-
connect the power. Re-
move the controller. Re-
move the two thermocouple wires from the back of
the controller.
Cut a thin paperclip in half. Insert a U-shaped
paperclip piece, or other piece of thin wire, where
you removed the thermocouple wires.
Plug in the kiln. If the controller displays room
temperature,replacethe thermocouple. If it shows
, return the controller for repair or
replacement.
FE Error Messages
FE 1
Memory Read/Write Failure
FE 2
RAM Failure
FE 3
OEM Factory Data Corruption
FE 4
Thermocouple “Noise”
FE 5
Software Error
