BA-UI-EN-D33363.pdf - 第34页
34 D33363 | Date 01/2020 Malfunctions, warning and err or messages 6.2 Malfunctions, operating problems and appliance err ors Error description Cause of errors Rectifying errors See Displays are dark External power suppl…
D33363 | Date 01/2020 33
Malfunctions, warning and error messages
6. Malfunctions, warning and error messages
Warning!
After removing covers, live parts may be exposed. You may receive
an electric shock if you touch these parts. Malfunctions requiring
work inside the appliance may only be rectifi ed by electricians. Ob-
serve the separate service manual for this.
Do not try to rectify appliance errors yourself but contact the MEMMERT customer service
department (see page 2) or an authorised service point.
In case of enquiries, please always specify the model and appliance number from the name-
plate (see page 13).
6.1 Warning messages of the temperature monitoring function
Description Cause Action See
Temperature alarm and
"TWW" are displayed
TEMP
TWW Set 190.0 °C
195.4 °C
The adjustable
undertemperature
/ overtemperature
controller (TWW)
has assumed heat-
ing control.
Increase the difference between
the monitoring and setpoint
temperature – by either in-
creasing the max value of the
temperature monitoring (
MAX
temp) or decreasing the setpoint
temperature.
If the alarm continues: Contact
customer service
page
40
page 2
Temperature alarm and
"TWB" are displayed
TEMP
TWB Set 190.0 °C
195.4 °C
The electronic
temperature
limiter (TWB) per-
manently switched
off heating.
Deactivate the alarm by pressing
the confirmation key.
Increase the difference between
the monitoring and setpoint
temperature – by either in-
creasing the max value of the
temperature monitoring (
MAX
temp) or decreasing the setpoint
temperature.
If the alarm continues: Contact
customer service
page
40
page 2
Temperature alarm and
TB are displayed
TEMP
TB
230.4 °C
The mechanical
temperature lim-
iter (TB) perma-
nently switched
off heating.
Switch off the appliance and
leave to cool down. Contact
customer service and have the
error rectified (e.g. by replacing
the temperature sensor).
page 2
34 D33363 | Date 01/2020
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
23
Miniature fuse, appliance
fuse or power module
faulty
Contact customer
service
page 2
Individual or all displays
cannot be activated
The appliance is in timer
or remote control mode
(mode "Write" or "Write +
Alarm")
Wait until the end of
the timer or switch off
the remote control
Displays suddenly look
different
Appliance is in "wrong"
mode
Change to operating or
menu mode by pressing
the
MENU key
Error message E-3 in
the temperature display
TEMP
Set 45.0 °C
E-3 °C
Temperature sensor defec-
tive.
► Switch off appli-
ance.
► Remove the cham-
ber load
► Contact customer
service
page 2
When switching on
the appliance, the start
animation is displayed
in another colour than
white
► Cyan :
Not enough storage
space on the SD card
► Red :
The system files could
not be loaded
► Orange : The
fonts and images could
not be loaded
Contact customer
service
Contact customer
service
Contact customer
service
page 2
page 2
page 2
D33363 | Date 01/2020 35
Malfunctions, warning and error messages
6.3 Power failure
Warning!
Depending on the operation performed, the surfaces in the interior
and the chamber load may still be very hot after power loss. Ad-
ditionally, depending on the duration of the power loss, the appli-
ance might heat up again after power supply has been restored (see
below). Touching these surfaces can cause burns. Wear heat-resistant
protective gloves or wait until the appliance cools down fi rst.
In case of a power failure, the appliance operates as follows:
In manual mode
After power supply has been restored, operation is continued with the parameters set. The
time and the duration of the power failure is documented in the protocol 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 interruptions of the power supply
longer than this, all appliance functions (heating, fan etc.) are switched off and the air flap is
opened.
In remote control mode:
The previous values are restored.