Dometic COOLMATIC HDC155 Installation & Operating Manual page 30

Troubleshooting
Interior temperature too low at control level "1"
Fault
Compressor runs
constantly
Compressor runs for a
long time
Poor cooling, increase in interior temperature
Fault
Compressor runs for a
long time/continuously
Compressor does not
run often
30
Possible cause
Thermostat sensor has no contact to
the vaporiser
Short circuit in the thermostat line
Thermostat defective
Large quantities have been frozen in
the freezer compartment
Possible cause
Vaporiser is iced over
Ambient temperature too high
Insufficient ventilation
Condenser is dirty
Fan defective (if installed)
Battery capacity exhausted
HDC155
Remedy
Secure the sensor
Change the thermostat
–
Remedy
Defrost the vaporiser
–
Move the refrigerator to
another location
Clean the condenser
Replace the fan
Charge the battery
EN