Arctiko SF SERIES, Service Manual, Page: 7 / 48

7
Problem Cause Recommended
equipment
Troubleshoo ng Ac on
The unit does not
freeze and the
compressor does
not start.
The socket or
fuse is defect.
Universal
instrument
test Lamp
Check the instal-
la on.
New fuse / plug.
Power cable is defect. Check power
cables
and wiring in the
engine compart-
ment.
Repair errors. Con-
sider using wiring
diagram sec on 5
The controller is defect. Change controller
The sensor is defect. Test sensor. See sec on 3n
Faulty windings in
compressor. Test compressor
windings. See sec on 3k
Start relay defect. Test start relay. See sec on 3m
Fault in electrical instal-
la on. Use wiring-dia-
gram. See sec on 5
The unit does not
freeze. The com-
pressor tries to
start, but fails.
Low voltage
Voltmeter Check voltage Find the cause.
Defect or faulty start
relay/capacitor. See sec on 3m See sec on 3m Change start relay/
capacitor
Defect compressor
windings. Ohmmeter Check for electrical
failure in the com-
pressor. Change the compr.
See sec on 3f
Defect rotor (compres-
sor failure) Change the compr.
See sec on 3f
High pressure in the
cooling system.
Tapping valve
Manometer
Filter Open the system
and rinse the sy-
stem with nitrogen. Remove 5cm of
the capillary tube.
Change lter.
See sec on 3e
The unit has been
transported horizon-
tally. The unit must rest
a few hours before
start.
Ambient temp. low.
Compr.oil too cold. Eksternal thermo-
meter. Check the temp. Find a be er place-
ment.
May be general, if the
ven la on is not suf-
cient.
Ambient temp. high.
Eksternal thermo-
meter.
Thermometer
Check, that the
compressor not
exceeds 70°C.
Check ambient
temp.
Find a be er pla-
cement or ven la-
on.
Find a be er pla-
cement or ven la-
on.
3b. Troubleshooting schedule
fi
fi