26
Malfunctions, warning and error messages
6.2 Malfunctions, operating problems and appliance errors
Error description Cause of errors Rectifying errors See
Displays are dark External power supply
was interrupted
Check the
power supply
page 18
Miniature fuse, appliance
fuse or power module
faulty
Contact customer
service
page 2
Displays cannot be
activated
Appliance is in timer
mode
Wait for end of timer
or deactivate it
Page 22
Displays suddenly look
different
Appliance is in "wrong"
mode
Change to operating
or menu mode by
pressing the
MENU
key
Error message in timer
display
Error 23
Pt100 Error
Contact
Service
Appliance error Contact customer
service
page 2
6.3 Power failure
In case of a power failure, the appliance operates as follows:
In normal operation
After power supply has been restored, operation is continued with the parameters set.
The time and duration of the power failure are documented in the log memory.
In timer mode
In case of an interruption of the power supply of less than 60 minutes, the current timer
is continued from the point at which it was interrupted. For longer interruptions of the
power supply, all appliance functions are switched off.
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