Alarms - Zanotti GM1 Manual De Uso Y Manutención

ATTENTION
Do not use either hot water or any pointed, cutting, metal objects to remove ice
blocks.
3. Display does not light up. Check:
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):
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 PRG key: AL appears. Press PRG
key. At this point a code is displayed indicating the cause of the alarm.
To leave the alarm menu wait 15 seconds or press and realase ON/OFF as long as cold room temperature
is displayed.
ALARM
High temperature
Low temperature
Room sensor
32
- 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.
- if there is power to the unit;
- if mains cable is connected properly;
- fuses inside the electric panel
alarm led
alarm relay
DISPLAY
(AH1)
Red led and alarm relay are
activated; HI is displayed in the
alarm menu as indicated above.
(AL1)
Red alarm led and alarm relay
are activated; AL1 is displayed in
the alarm menu.
(E1)
Red alarm led and alarm relay
are activated; E1 is displayed.
CAUSE
Excessive door openings.
Excessive product load.
Product too warm.
Malfunction of the unit.
Malfunction of the
electronic controller.
Faulty sensor.
Sensor with wrong
connection.
REMEDY
Service intervention.
Replace sensor.