18
Technical and Service manual
Porkka reserves the right to make product alterations at any time and can not be held responsible for any printing errors or omissions.
Inventus upright refrigerators and freezers
Troubleshooting
The evaporator ice’s up, the
cabinet will begin to warm
up or the temperature of a
freezer cabinet ‘F’ is slow to
regain back to the set
temperature.
The fault can be caused by
the condenser.
The air circulation of the condenser has been blocked
by something.
Check that the air
circulation is not blocked.
The condenser or the condenser filter is dirty and
blocked.
Clean the filter and/or the
condenser.
The condenser fan does not function. See the item:
The unit gives ”Csd” alarm.
The evaporator ice’s up, the
cabinet will begin to warm
up or the temperature of a
freezer cabinet ‘F’ is slow to
regain back to the set
temperature.
The fault can be caused by
Misuse of the unit.
The equipment being used to other purpose of use
than it was meant for.
Check that no one is
trying to refrigerate
or freeze warm foodstuffs.
Air circulation inside the cabinet is blocked. Check that the air
circulation is not blocked.
The evaporator ice’s up, the
cabinet will begin to warm
up or the temperature of a
freezer cabinet ‘F’ is slow to
regain back to the set
temperature.
The fault can be caused by
the Function of the
evaporator fan.
See the item ” The fan signal LED in the control
device is on but the evaporator fan does not rotate.”
Replace the fan
In case the equipment has two evaporator fans,
check that both fans function. If one of them does
not function it is probably not possible to reach the
required temperature.
Replace the fan
The evaporator ice’s up, the
cabinet will begin to warm
up or the temperature of a
freezer cabinet ‘F’ is slow to
regain back to the set
temperature.
The fault can be caused
by the function of defrosting.
See the item ”The evaporator probe P2 does not
function properly”.
The hot-gas defrosting of the cabinet with own
cooling unit does not function.
Check the function of the electromagnetic valve.
The valve pipe to the evaporator is hot in the
beginning of defrosting if the valve opens normally.
Replace the magnet valve
if necessary.
The electric defrosting of the cabinet with central
cooling unit does not function.
Measure the function of the defrost relay of the
control board connectors. If no voltage comes to the
points, the relay is defective.
Replace the board.
The electric defrosting of the cabinet with central
cooling unit does not function.
Measure the function of the defrost relay of the
control board connectors. If voltage comes to the
points, the heater is defective.
Replace the heater.
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