25
Error codes
If the actions described fail to resolve the fault or another error code is displayed then take one of the following steps:
- Contact the service department,
- Send the device for repair, including a short description of the fault.
Any malfunctions during operation will be identified by an error
message on the display (E and F).
Proceed as follows in such cases:
Error code Cause
Effect
Solution
Er3
Temperature inside device too high
Heating off - Switch off device and allow to cool down
Er4
Motor blockage
Heating off
Motor off
- Switch off device
-
Warning! Only to be carried out by authorized service personnel:
Carry
out an internal test on the device to check the plug-in
connector for the motor
Er5
No temperature increase in sensor at continuous
temperature difference
Heating off - Place the sensor in the medium
- Reduce the volume of the media
- Use a carrier fluid with better heat conductivity properties
- Replace the glass vessel with a metal pot
- Increase the “Time-out” period
Er6
Break in safety circuit
Heating off - Plug in contact plug (L)
- Plug in PT 1000 contact thermometer / temperature sensor
- Replace faulty connecting cable, plug, or contact thermometer
Er24
Surface temperature
(temperature of control sensor)
:
of the base plate is higher than the set safe
temperature limit
Heating off - Switch off device until the surface temperature of the base plate
is lower than the selected safe temperature limit
- Set a higher safe temperature limit
Er44
Surface temperature
(temperature of safety sensor):
of the base plate is higher than the set safe
temperature limit
Heating off - Switch off device until the surface temperature of the base plate
is lower than the selected safe temperature limit
- Set a higher safe temperature limit
Er25
Heating and switching element monitoring
Heating off - Switch off device
- Set the safe temperature limit > 55 °C
see also ”Functional check of inactivating the safety circuit”
-
Warning! Only to be carried out by authorized service personnel:
Carry
out an internal test on the device to check the plug-in
connector for the heating element
Er26
Difference between temperature of safety sen-
sor and temperature of control sensor
control temperature
> (safety tempe
40 K)
Heating off - Switch off device
-
Warning! Only to be carried out by authorized service personnel:
Carry
out an internal test on the device to check the plug-in
connector for the temperature sensor
Er46
Difference between temperature of safety sen-
sor and temperature of control sensor
safety temperature
> (control tempe
40 K)
Heating off - Switch off device
-
Warning! Only to be carried out by authorized service personnel:
Carry
out an internal test on the device to check the plug-in
connector for the temperature sensor
- Switch off device using the main switch (A)
- Carry out corrective measures
- Restart device
Summary of Contents for RCT basic safety control
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