ISA 120 RV TB, Руководство по эксплуатации и обслуживанию

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15
EN
GELATO SHOW 2
USE AND MAINTENANCE MANUAL
428000485237
10. FAULTS - TECHNICAL AFTER-SALES ASSISTANCE
If the appliance is not working properly or stops working, before contacting the Customer support centre, check
the following:
FAULT CAUSE SOLUTION AUTHORISED
PERSONNEL
The appliance
is not working
Blown protective fuse Previously fi nd the cause of the intervention
of the switch, and then re-introduce the new fuse.
User
The master switch is open Close the master switch. User
The plug is not inserted Insert the plug. User
Electric black-out If the black-out should be prolonged,
transfer the product into an appropriate cold storage con-
tainer.
User
The internal
temperature
is not low
enough
Evaporator/s obstructed com-
pletely by ice
Carry out an additional defrosting cycle. User
The wrong temperature has
been set on the electronic
control board
Set the appropriate temperature. User
The appliance is affected by
draughts or is exposed to
direct or refl ected sunlight
Remove any excessive draughts and prevent any direct or
refl ected sunlight.
User
Insuffi cient cooling air fl ow
rate of the
air condenser
Remove anything that may affect air fl ow inside the con-
densing unit (paper sheets, cardboard, grids with an insuf-
fi cient number of holes, etc.).
User
Internal fans at standstill
or with fans damage
Contact the Technical Assistance service Technical
Assistance
Internal ventilation is too high Contact the Technical Assistance service Technical
Assistance
Low electronic control board
effi ciency
Contact the Technical Assistance service
Replace the electronic control board.
If the control unit is set up especially for must R290
refrigerant, it must only be replaced with an original
replacement from ISA.
Replace the temperature probes only after checking which of
the two is not operating effi ciently.
Technical
Assistance
Air condenser
blocked by dust or dirt in
general
Contact the Technical Assistance service.
Clean the condensing unit thoroughly.
Technical
Assistance
Insuffi cient refrigerant
load in the cooling system
Contact the Technical Assistance service
Find the cause behind the lower amounts of coolant and
eliminate it. Top up the coolant. If necessary, empty the
system before topping up.
Technical
Assistance
The compres-
sor does not
start-up or
operates
for a few mo-
ments
No electric power supply
to the appliance
Check if there is a power cut.
Close the various switches on the power supply line.
User
The power supply voltage is
too low
Check that the network voltage of the power supply cable is
220V +/- 10%.
User
Temperature set too high If the set temperature is higher than that of the air in the
display area, the compressor does not activate itself.
Set a more suitable temperature if the current value is not
low enough
User
The pressure switch (if any)
was activated at maximum
pressure
Contact the Technical Assistance service.
Check the reasons why the pressure switch is operating
at maximum pressure levels, such as: air condensing unit
blocked, condensing unit fan stopped, ambient temperature
too high, pressure switch broken.
Technical
Assistance