Instructions, Maintenance and Service Manual ULTRAFREEZER Series
14
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8.
ALARMS
The alarm relays are activated in normal position and will be de-activated during alarm. So,
an alarm will be generated during total power failure. An alarm can be generated when:
-
one of the temperature sensors is defective;
-
the lead battery is empty/ voltage is too low/ battery is not connected;
-
there is power failure;
-
temperature is out of cold- or warm range;
-
maximum time door-open;
-
maximum temperature of the condenser sensor is exceeded.
By pressing
‘Setp.’
button the buzzer will be reset. The alarm codes will be staying on the
display. The alarm leds will keep on flickering. When the failure hasn’t been restored, the
buzzer will be activated again after one minute.
In the next table the alarm codes are listed:
CODE
DESCRIPTION
CHECK
E1
Temperature sensor cabinet defective.
Connections
E2
Condenser sensor defective.
Connections
E3
Battery not connected.
Connections, fuses, battery
E4
Main voltage absent.
Absence voltage, fuse
internal
E5
Battery voltage too low.
Battery
E6
Door alarm.
Closure of the door
E10
Main voltage deviates too much.
Parameter P72/P73
Lo1
Temperature line sensor inside too low.
See chapter 10
Hi1
Temperature line sensor inside too high.
See chapter 10
Hi2
Temperature condenser sensor too high.
See chapter 10
9.
MAINTENANCE
Inspite of the anti condense heating in the edges of the freezer, freezing can occur.
To guarantee a proper functioning of the lockable rubbers, this freezing needs to be
removed.
Keep the freezer dry at the outside when there is some drip water.
Check frequently the vacuum release (left side upright freezers), if it’s ice-free. The
vacuum release can easily be removed.
Important
When unexpected problems occur during working with the ULTRAFREEZER, which can be
dangerous for yourself and/or your surrounding, remove the plug immediately from the
outlet.
