8.
PROBLEMS AND SOLUTIONS
PROBLEM
PROBABLE CAUSE
POSSIBLE REMEDIES
The equipment does not work
Circuit breaker tripped
Finding advance the cause of the switch, only
after you reinsert it.
Refriger switch open
Close the refrigeration switch.
Local power failure
If the black-out proceedings are protracted,
transfer the product in a closed cooler, in
order to limit, as far as possible, the heating.
The
compartment
temperature exposure is not
sufficiently low.
Evaporator completely blocked by
ice.
Provide a complete defrost after transferring
all product in a closed refrigerator.
Do not re-enter the product in the showcase
until after identified the cause of the trouble.
Interior Fans stopped or damaged
Replace the fans are not working
Find the electrical problem if fans are intact.
Replace damaged fans with new ones with
the exact angle of the blades.
Too high internal ventilation
Replace fans, presumably deform incorrect
interventions, with new ones with the exact
angle of the blades.
Wrong temperature setting on the
electronic control unit.
Set the appropriate temperature.
Not efficient electronic control unit.
Replace the electronic control unit, or the
temperature probes, until you are sure which
of these is inefficient.
Exposure compartment invested
from drafts or exposed to direct or
reflected sunlight.
Eliminate excessive air currents and avoid in
any way direct or reflected rays of the sun.
Air condenser clogged by dust or
dirt in general.
Thoroughly clean the condenser.
Insufficient flow of
the
air
condenser cooling air.
Remove everything that is an obstacle to
sufficient air circulation through the
condenser (sheets of paper, cartons,
insufficiently slotted grids, etc.).
Insufficient refrigerant in whole
system.
Finding advance the cause of loss of coolant
and
eliminate
it;
proceed
to
the
reinstatement of the refrigerant charge
possibly preceded by a further emptying of
the plant.
Insufficient flow rate of the water
condenser cooling water.
Check if there is water supply; if it is present,
making adjustments, or replacement, of the
control valve or pressure switch.
Place the product on the air is
too cold, the inlet is too hot.
Evaporator blocked by frost.
Verify that it is the perfect tightness of the lift
glazing
gaskets,
that
the
exposure
compartment is not invested by air currents,
that the pull-down / sliding are always closed
to less than the maximum sales periods, that
the
ventilation
of
the
refrigerated
compartment is sufficiently active and that
the chilled product does not exceed the load
limit.
In case positive operate accordingly.
Summary of Contents for L 1200
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