Error messages and remarks
69
Error code
Description
Measures
E25
Display error
The connection to the display is interrupted.
•
Switch off the main switch and wait 30
seconds before switching the device on
again.
•
If the error persists, contact the Retsch
GmbH technical service.
E26
Frequency converter error
Communication with the frequency converter is
interrupted or faulty.
•
Switch off the main switch and wait 30
seconds before switching the device on
again.
•
If the error persists, contact the Retsch
GmbH technical service.
E41
Speed sensor error
Target and actual speed of the drive deviate from
each other.
•
Switch off the main switch and wait 30
seconds before switching the device on
again.
•
If necessary, remove any foreign bodies
from the interior of the device.
•
Check whether the cassette cover is
correctly inserted.
•
If the error persists, contact the Retsch
GmbH technical service.
E50
Safety circuit error
A safety function has been interrupted.
•
Switch off the main switch and wait 30
seconds before switching the device on
again.
•
If the error persists, contact the Retsch
GmbH technical service.
E80
USB interface error
An update was carried out via the settings menu.
No USB stick is connected or the USB stick does
not contain any information.
•
If the error persists, contact the Retsch
GmbH technical service.