Truma DIGITAL TIMER CONTROL User Instruction Manual page 37

Interior temperature too low in
control level '1'
Fault
Compressor runs constantly
Compressor runs for a
long time
Compressor does not run
(battery connection)
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
compressor interrupted
U Voltage between the positive and negative
KL
terminals of the electronics
U Cut-in voltage of the electronics
ON
U Cut-off voltage of the electronics
OFF
Possible cause
Faulty thermostat
Large quantities have
been frozen in the
freezer compartment
There is an interruption in
the connection 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 supply
Condenser is dirty
Defective compressor
Remedy
Change the thermostat
Establish a connection
Replace the main switch
Replace the supply line fuse
Charge the battery
Establish a connection
Replace the battery
Replace the cable
Move the refrigerator to
another location
Clean the condenser
Replace the compressor
115