ISA ZERO MY20, Руководство пользователя

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15
ZERO MY20
EN 428001318037
Use and maintenance manual
9. FAULTS - TECHNICAL AFTER-SALES ASSISTANCE
In case of uncertain or no operation, before requesting the intervention of the Technical Assistance service
perform the following checks:
MALFUNCTION CAUSE SOLUTION MANAGER
THE EQUIPMENT DOES NOT WORK
Blown protective fuse
First find the cause of the trip of the switch, and then replace the
new fuse.
User
The master switch is open Close the master switch. User
The plug is not inserted Insert the plug. User
Electrical black-out
If the blackout continues for a long time, transfer the product into
an appropriate refrigerated container.
User
THE TEMPERATURE IS NOT SUFFI-
CIENTLY LOW
Wrong temperature setting Set the appropriate temperature. User
Equipment being struck by currents of air or
exposed to direct or reflected sunlight
Eliminate air currents and always avoid direct sunlight
or reflections of the sun.
User
Insufficient air flow for cooling to the
condenser
Remove anything which could obstruct air circulation through the
condenser (sheets of paper, cardboard, insufficiently slotted grids,
etc.).
User
High ventilation
Technical
Assistance
Internal fans not working or damaged fans Replace the ventilators/fans.
Technical
Assistance
Thermostat / Electronic control board not
efficient
Replace the thermostat/electronic control board.
If the electronic control board is used on appliances with R290 cool-
ant, it must only be replaced with an original spare part supplied
by the manufacturer. Replace the temperature probes only after
checking which of the two is not operating efficiently.
Technical
Assistance
Condenser unit blocked by dust or dirt in
general
Clean the condensing unit thoroughly.
The condensing unit in particular operating environments (e.g.
presence of dust, presence of excessive humidity, etc.) when
the performance of the appliance deteriorates requires careful
cleaning.
Technical
Assistance
Insufficient refrigerant quantity in the
cooling system
Find the cause of the refrigerant leak and eliminate it; refill the
refrigerant, possibly preceded by new emptying the system.
Technical
Assistance
THE COMPRESSOR DOES NOT
START WORKING OR WORKS FOR
VERY SHORT PERIODS
No electric power supply to the appliance
Check if there is a power cut.
Close the various switches on the power supply line.
User
Power supply voltage too low
Check that the mains voltage of the power power supply corresponds
to the nominal value 220V +/- 10%.
User
Temperature set too high
If the temperature is higher than the air temperature in the display
chamber, the compressor will not start. Set a more suitable tem-
perature if the current value is not low enough.
User
Maximum pressure switch intervention (if
present)
Check the cause of the continuous interventions of the maximum
pressure switch such as: blocked air condenser, air condenser fan
stopped, excessively high ambient temperature, breakage of the
pressure switch itself.
Technical
Assistance
THE TOUCH SCREEN DOES NOT
REACT TO COMMANDS
The display is dirty
Clean the display.
Turn the equipment off and on again.
User
FOOD DOES NOT REACH THE
REQUIRED TEMPERATURE
Incorrect cooling cycle setting Check the program and correct the food distribution inside the cell. User
Incorrect division of the food on the trays Check, if any, obstructions to correct air circulation. User
High thickness of the food Reduce the thickness of the food. User
Presence of cover or lid Remove the cover or lid. User
THE TEMPERATURE SIGNALLED BY
THE PIN PROBE IS INCORRECT
Incorrect insertion of the pin probe
Check correct insertion of the pin probe into the core of the
product.
User
The pin probe is damaged
Use only timed or assisted programs.
Contact the Technical Assistance Service for replacement.
User