IKA KS 4000 ic control - Manual (Page 25)

25 KS 4000 i 1011
Error code Description Cause Effect Solution
Er 3 Temperature inside unit too high • Permitted ambient temperature has Heating off • Switch off the unit. Allow it to cool down
been exceeded and then switch on again.
• Ventilation slots or fan housing • Clean ventilation slots or fan
blocked housing
• Observe maximum permissible
ambient temperature
Er 4 Differanceberween setpoint and • Motor seized or overloaded Heating off • Reduce the torque load
actual speeds is too large (load)
• Reduce the setpoint speed
Er 8 The calibration value of the tempe- • Fault in calibration procedure Heating off • Repeat the calibration procedure
rature sensor is outside the limit • Value was incorrectly stored to memory
value • EPROM switching error
Er 14 External temperature sensor, • Short-circuit at temperature sensor Heating off • Check the plug
short-circuit plug • Substitude the temperature sensor
• Short-circuit in connecting cable
or on temperature sensor
Er 16 External temperature sensor has • SAFE Temp is set at a temperature Heating off • Allow the unit to cool
exceeded the SAFE Temp lower than the actual temperature on • Set the SAFE Temp at a higher temperature
the external temperature sensor
Er 17 Temperature sensor - Incubation- • SAFE Temp is set at a temperature Heating off • Allow the unit to cool
room has exceeded the lower than the actual temperature on • Set the SAFE Temp at a higher temperature
SAFE Temp the external temperature sensor
Er 26 Difference between the internal • Ventilation slots in incubation room Heating off • Switch off the unit. Allow it to cool down
contro and safety temperature blocked and then switch on again.
sensors too large • Radial-flow fan does not rotaded • Check fan or ventilation slots and
• Fault in the control or safety clean if necessary
temperature sensors
Er 60 Power outage • Power outage during operation Interruption of heating • Delete the display by pressing the
or shaking function shift key