COOLMATIC MDC Series
Troubleshooting
35
Interior temperature too low in control setting 1
Cooling capacity drops, interior temperature rises
Unusual noises
U
OFF
Switch-off voltage of the electronics
Fault
Possible cause
Remedy
Compressor runs
constantly
Thermostat sensor has no contact to
the vaporiser
Secure the sensor
Thermostat defective
Change the thermostat
Short circuit in the thermostat line
Compressor runs for a
long time
A large quantity has been frozen in the
freezer compartment
–
Fault
Possible cause
Remedy
Compressor runs for a
long time/continuously
Vaporiser iced over
Defrost the vaporiser
Ambient temperature too high
–
Insufficient ventilation
Move the cooling device
Condenser is dirty
Clean the condenser
Fan defective (if installed)
Replace the fan
Compressor does not
run often
Battery capacity exhausted
Charge the battery
Fault
Possible cause
Remedy
Loud humming
A component of the refrigerant circuit
cannot move freely (lies against the
wall)
Bend the component
carefully
Foreign body jammed between the
cooling device and the wall
Remove the foreign body
Fan noise (if installed)
–
MDC.book Seite 35 Montag, 27. September 2010 4:01 16