Troubleshooting Coldmachine
30
Interior temperature too low in control setting 1
Cooling capacity drops, interior temperature rises
Start attempt with
U
T
≥ U
ON
Ambient temperature too high –
Insufficient ventilation and/or cooling Provide improved ventila-
tion for the cooling unit
Condenser is dirty Clean the condenser
Fan defective (if installed) Replace the fan
U
T
Voltage between the positive and negative electronic terminals
U
ON
Switch-on voltage of the electronics
U
OFF
Switch-off voltage of the electronics
Fault Possible cause Remedy
Compressor runs
constantly
Thermostat sensor has no contact on the
evaporator
Secure the sensor
Thermostat defective Change the thermostat
Compressor runs for a long
time
Large quantities have been frozen in the
freezer compartment
–
Fault Possible cause Remedy
Compressor runs for a long
time/continuously
Evaporator is iced over Defrost the evaporator
Ambient temperature too high –
Insufficient ventilation and/or cooling Provide improved ventilation
for the cooling unit
Condenser is dirty Clean the condenser
Fan defective (if installed) Replace the fan
Compressor runs
infrequently
Battery capacity exhausted Charge the battery
Fault Possible cause Remedy
DometicColdMachine50-54-55-84-85-86-94-95-96-CS-NC15_IOM_4445100001_EMEA16_20xx-xx-xx.book Page 30 Tuesday, May 4, 2021 7:24 PM
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