Instruction manual

EN
Troubleshooting CR50, CR 65, CR80, CR110, CR140
50
Interior temperature too low in control level “1”
Compressor does not run (battery connection)
Fault Possible cause Remedy
Compressor runs con-
stantly
Faulty thermostat Change the thermostat
Compressor runs for a
long time
Large quantities have been frozen in
the freezer compartment
–
Fault Possible cause Remedy
U
KL
= 0 V There is an interruption in the connec-
tion between the battery and
the – electronics
Establish a connection
Main switch faulty (if installed) Replace the main switch
Additional supply line fuse has blown
(if installed)
Replace the supply line
fuse
U
KL
≤ U
EIN
Battery voltage is too low Charge the battery
Start attempt with
U
KL
≤ U
OFF
Loose cables
Poor contact (corrosion)
Establish a connection
Battery capacity too low Replace the battery
Cable cross section too small Replace the cable
(fig. e, page 9)
Start attempt with
U
KL
≥ U
ON
Ambient temperature too high –
Insufficient ventilation and/or air sup-
ply
Move the refrigerator to
another location
Condenser is dirty Clean the condenser
Electric circuit between
the pins in the compres-
sor interrupted
Defective compressor Replace the compressor
U
KL
Voltage between the positive and negative terminals of the electronics
U
ON
Cut-in voltage of the electronics
U
OFF
Cut-off voltage of the electronics
_cr-kuehlschraenke.book Seite 50 Montag, 27. Februar 2012 12:46 12