CU-EMA+
7.1.1 Error messages on the display
If an error occurs, the display will read "
Err
". Press the "
" button to show the error number(s).
Error messages will appear until the unit has been restarted or the error is cleared using the "
Func
" button. It can only be cleared
if the cause for the error has been corrected.
Causes / Action: The following is a list of the most common causes and actions for the respective error. If the actions listed do
not resolve the problem, please contact Service.
Problem / Malfunction
Possible cause
Action
No display
– No voltage
– Loose connecting cable
– Display defective
– Check the supply cable
– Check fuse
– Check connections
(permanent)
D1.02
(The software version for the display will appear).
– Not communicating with the controller
– Check connections
Error
– An error has occurred
– Read the error number as described above
Error 01 – Controller malfunction
– Clear error (temporary fault)
– Disconnect from power for approx. 5 s
– Contact service
Error 03 – Microcontroller Fault / MCP2
– Contact service
Error 04 – EEPROM error
– Contact service
Error 22 – Moisture detector 1 cable break
– Check moisture detector line
– Check moisture detector
Error 32 – Moisture detector 2 cable break
– Check moisture detector line
– Check moisture detector
Error 40 – General error temperature sensor 1
– Sensor possibly defective
Error 41 – Low temperature / short-circuit temperature
sensor 1
– Check temperature sensor connection
Error 42 – Excess temperature / short-circuit temperature
sensor 1
– Check temperature sensor connection
Error 43 – Measurement fluctuation temperature sensor 1 – Check temperature sensor connection
Error 50 – General error temperature sensor 2
– Sensor possibly defective
Error 51
– Low temperature / short-circuit temperature
sensor 2
– Check temperature sensor connection
Error 52 – Excess temperature / short-circuit temperature
sensor 2
– Check temperature sensor connection
Error 53 – Measurement fluctuation temperature sensor 2 – Check temperature sensor connection
23
Bühler Technologies GmbH
BE440029 ◦ 10/2020
