17
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 fan signal LED in the
control device is on but the
evaporator fan does not
rotate. It is possible that
the unit gives ”HA” alarm
because of too high
temperature inside the
cabinet.
Measure the boards connectors, if voltage comes to
the fan points. If there is voltage to the points, the
fan is out of order.
Replace the fan
Measure the board connectors for the fan. If the
control voltage does not come to the points, the
board is defective.
Replace the board
The unit gives ”Csd” alarm.
First, make sure that the
signal LED on the display
condenser fan is on. If so,
the condenser fan should
running.
If the fan does not operate even though its signal
LED is on, measure the board connectors if voltage
comes to the fan points the fan is out of order.
Replace the fan
Measure the board connectors to see if voltage
comes to the fan points. If there is no power to the
points, the board is defective.
Replace the board
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.
RAPID CHECK ABC
A. The fault can be structural Check the door gasket
B. The fault can be caused by misuse of the unit,
negligence of cleaning and/or the ambient
conditions
C. The fault can be caused by an electric and/or
refrigeration technical problem
Replace the probe
Measure if the suction
pressure if exceptionally
low. Normally about:
1 bar F, 1-4 bar C
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 structural.
Check if the unit is tight.
Close the door and pull it
immediately open. If you
need strength to open
the door, the cabinet is
probably tight. If it is easy
to open, there is an air
leakage somewhere.
The door gasket leaks. The gasket can be torn,
hardened or fatigued. Even the frame of the
cabinet can be distorted if it has been incorrectly
assembled.
Replace the gasket and/or
refit the cabinet
Either the inlet or the sealing face of the evaporator
box leaks. Check first the tightness of the inlet. Only
then remove the evaporator box.
Change the sealings if
necessary
The sealing face of the machine cassette leaks.
Remove the machine cassette.
Add butyl mastic on the
sealing face if necessary
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