
USER INTERFACE
2.13.2018
111
Alarm-Code
Cause
Diagnosis / Remedy
E116
The relay lock of the safety mechanism is
still active.
The unit was turned back on too quickly to
reset the relay lock of the safety
mechanism.
Turn off the unit at the power switch, wait 4
seconds, and turn the unit back on.
E117
Local overheating at heater.
(1) The viscosity of the liquid may not
exceed the maximum permitted value at any
working temperature.
(2) The medium has not been completely
purged.
(3) There is too less recirculation.
E118
Error in internal temperature measurement
circuit.
If this error continues to occur, please
contact JULABO Service.
E119
Line break in external temperature probe 2.
Check the electrical connection to external
temperature probe 2 (EXT Pt100 2).
E120
Short circuit in external temperature probe
2.
Check the electrical connection to external
temperature probe 2 (EXT Pt100 2).
E201
Error in pump pressure measurement.
If this error continues to occur, please
contact JULABO Service.
E201
Error in cooling water pressure
measurement.
If this error continues to occur, please
contact JULABO Service.
E204
Error in total current measurement.
If this error continues to occur, please
contact JULABO Service.
E204
Error in current measurement in heater
circuit.
If this error continues to occur, please
contact JULABO Service.
E205
Error in current measurement for compressor
stage 1.
If this error continues to occur, please
contact JULABO Service.
E206
Error in current measurement for compressor
stage 2.
If this error continues to occur, please
contact JULABO Service.
E207
Error in current measurement in pump
circuit.
If this error continues to occur, please
contact JULABO Service.
E208
Error in main power voltage measurement.
If this error continues to occur, please
contact JULABO Service.
E301
The pressure in the external temperature
control circuit has been higher than the peak
limit entered for 1 second.
Correct the pressure setpoint downwards, or
set the peak pressure limit upwards (if
reasonable from a safety standpoint).
E302
The pressure in the external temperature
control circuit has been higher than the limit
entered for 5 seconds.
Correct the pressure setpoint downwards, or
adjust the pressure limit upwards (if
reasonable from a safety standpoint).
E303
Fuse SI2 or SI3 on the power module is
defective.
The power module or the fuse must be
replaced.
E304
Main power voltage is detected even though
the unit is in standby mode.
If this error continues to occur, please
contact JULABO Service.
E401
Evaporator outlet temperature probe is
defective.
Evaporator outlet temperature probe is short-
circuited.
E402
Evaporator outlet temperature probe is
defective.
Line break to evaporator outlet temperature
probe.