25
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
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
Label
Failure
Cause
Problem resolution
P1
Environment probe
(Pb1)
• values outside the
operation range
• failed / shortcircuited /
open probe
• check the type of probe
(NTC)
• check the wiring of probes
• replace the probe
P2
End of de-frosting
probe
(Pb2)
• values outside the
operation range
• failed / shortcircuited /
open probe
• check the type of probe
(NTC)
• check the wiring of probes
• replace the probe
CA
HIGH/LOW pressure
alarm
• Overcoming of the
High/Low pressure value,
read by the corresponding
pressure switches (it is
over the highest allowed
differential value ).
• Check the pressure switch
efficiency.
Check if the condenser is clean or if the
condenser fan is correctly working.
dA
Door open
check if the coldroom has
the door open, its seal,
introduction of hot product
etc.
13 How to order spare parts
When ordering spare parts make reference to the number written on the unit plate.
WARNING
Worn parts should be replaced only by qualified personnel or by the manufacturer.
14 How to dispose of the packing
Wooden, plastic, polystyrene packing shall be disposed of according to the regulations in force in the
country where the unit is used.
