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_cr-kuehlschraenke.book Seite 50 Montag, 27. Februar 2012 12:46 12
Troubleshooting
Interior temperature too low in control level "1"
Fault
Compressor runs con-
stantly
Compressor runs for a
long time
Compressor does not run (battery connection)
Fault
U
= 0 V
KL
≤ U
U
KL
EIN
Start attempt with
≤ U
U
KL
OFF
Start attempt with
≥ U
U
KL
ON
Electric circuit between
the pins in the compres-
sor interrupted
U
Voltage between the positive and negative terminals of the electronics
KL
U
Cut-in voltage of the electronics
ON
U
Cut-off voltage of the electronics
OFF
50
Possible cause
Faulty thermostat
Large quantities have been frozen in
the freezer compartment
Possible cause
There is an interruption in the connec-
tion between the battery and
the – electronics
Main switch faulty (if installed)
Additional supply line fuse has blown
(if installed)
Battery voltage is too low
Loose cables
Poor contact (corrosion)
Battery capacity too low
Cable cross section too small
Ambient temperature too high
Insufficient ventilation and/or air sup-
ply
Condenser is dirty
Defective compressor
CR50, CR65, CR80, CR110, CR140
Remedy
Change the thermostat
–
Remedy
Establish a connection
Replace the main switch
Replace the supply line
fuse
Charge the battery
Establish a connection
Replace the battery
Replace the cable
(fig. e, page 9)
–
Move the refrigerator to
another location
Clean the condenser
Replace the compressor
EN
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