Dometic CD20 Manual page 15

CD20, CD30
Cooling capacity drops, interior temperature rises
Feature
Compressor runs for a
long time/continuously
Compressor does not
run often
Unusual noises
Feature
Loud humming
Radio or television interference in the vehicle
Feature
Reception interference
when the compressor
is running
EN
Possible cause
Vaporiser iced over
Cooling area insulation is insuffi-
cient (moist/wet)
Ambient temperature too high
Insufficient ventilation
Condensor is dirty
Fan defective (if installed)
Battery capacity exhausted
Possible cause
A component of the refrigerant
circuit cannot move freely
(touching the wall)
Foreign body jammed between
the cooling unit and the wall
Fan noise
Possible cause
The electronic connection of
the cooling device is not
directly clamped on to the bat-
tery
Troubleshooting
Remedy
Defrost the vaporiser
Adjust/replace the drawer seal
Ensure that the device is suffi-
ciently ventilated
Clean the condenser
Replace the fan
Charge the battery
Remedy
Bend the component carefully
away from the obstruction
Remove the foreign body
–
Remedy
Connect the cooling device as
directly as possible to the bat-
tery
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