Device cannot maintain
target temperature.
"EI" is displayed.
Check to see if the wiring has a good contact with the
connector terminal.
Possible wall outlet failure, short circuit,
cable disconnection, and/or switch failure.
The set temperature is higher than the current
temperature; or
The heat protector has shut off the device due to
unsafe pressure.
The blue sensor cables are experiencing interference, are
poorly connected, and/or are tied to other cables; or
The power to the device is limited due to cable damage.
Check safety fuses at main power box for correct
operation. If device is still not working contact dealer/
purchase source for further instructions.
Reset the target temperature. Check device and
Heating Build Plate for loose cabling, damage, and/
or signs of overheating.
Reset the return difference value. Adjust this setting
in larger increments until you find a working value.
Display is ON but
device is not working.
*Adjusting or changing wiring to and within this device may cause electrical shock resulting in bodily harm and/
or damage to your Heated Buid Plate kit. Do not tamper with this device unless you are skilled in electronics.
The temperature controller is sold as part of a Heated Build Plate kit and as such should only be used with this
kit. If you are having an issue with your device or any of the components of the Heated Build Plate kit please
contact your dealer or purchase source for instructions on how to receive technical help, service, and/or a
replacement.
*3D printing filaments that require a Heated Build Plate kit may give off toxic fumes...make sure to use proper
ventilation whenever using your Heated Build Plate kit.
WARNING!
Troubleshooting
*If you notice anything potentially dangerous during operation please turn off this device, unplug from wall
outlet, and contact your dealer/purchase source for further help.
Remedy
Possible Cause
Failure
No display when
power is ON.
Displayed temperature
is unstable
Difference between target
temp. and the current
stable temp. is too wide in
range.
Heating continues past
target temperature.
The blue sensor cables are incorrectly
connected and the resistance is too strong; or
The blue sensor cables are damaged.
The blue sensor cables are incorrectly installed; or
The compressor contact is failing.
The target temperature return difference has
not been set to the correct value.
There is an open or short circuit in the blue sensor
cables.
Check to make sure the blue sensor cables are
correctly connected. Also check that the connector
is in good condition.
Check that the blue sensor cables have enough separation
from power cables. Make sure that the blue sensor cables
are not damaged. Sensor cable may need replacement.
Separate blue sensor cables from power cables. You may
also need to replace the shielded cable tubes/sheaths.
Check that connector is in good condition.
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