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- the door is opened too frequently;
- faulty operation of evaporator fan;
- faulty solenoid valve (in models with hot gas defrost);
- faulty defrost heater (in models with electric defrost);
- faulty defrost process. In this case some measures can be taken:
increase defrost termination temperature by some degrees, increase number of
defrosts.
ATTENTION
Do not use either hot water or any pointed, cutting, metal objects to remove ice blocks.
3.Display does not light up. Check:
- if there is power to the unit;
- if mains cable is connected properly;
- fuses inside the electric panel
4.Unit does not start operating when pressing ON/OFF key (the display is turned on):
check microdoor connection keeping in mind that the switch contact must be closed
when the door is closed.
Unsatisfactory efficiency of the unit:
If no defects are found in the unit check that: cold room doors are perfectly tight; there
is no cold dispersion; the cold room is used wisely; no unfrozen liquids or foodstuffs are
placed in the low temperature room; the evaporator is ice-free.
We recommend installation of the machines far from the doors especially when the cold
room is expected to be opened many times a day.
WARNING:
Removal of protections during machine operation is absolutely forbidden. They have been
developed to safeguard the operator’s safety.
12.4 Alarms
When an alarm condition occurs the following warning devices are activated (depending on the
nature of the alarm):
alarm led
buzzer
alarm
relay.
The buzzer and the alarm relay can be muted by pressing any key. When a key is
pressed, the led flashes as long as the alarm condition is present. To have the alarm
code displayed, press ENTER key for 3 seconds: FnC appears. Press SB.M./UP key until
AL is displayed and then press ENTER. At this point a code is displayed indicating the
cause of the alarm.
To leave the alarm menu wait 15 seconds or press SET as long as cold room temperature
is displayed.
ALARM DISPLAY
CAUSE REMEDY
High temperature
(HI)
Red led and alarm relay
are activated; HI is
displayed in the alarm
menu as indicated above.
Excessive door openings
Excessive product load
Product too warm
Malfunction of the unit
Low temperature
(LI)
Malfunction
of
the Service intervention
