Waeco CoolMatic HDC-270 Instructions De Montage Et De Service page 44

_HDC270.book Seite 44 Montag, 18. Oktober 2010 8:12 20
Troubleshooting
Interior temperature too low at control level "1"
Problem
Compressor runs con-
stantly
Compressor runs for a
long time
Poor cooling, increase in interior temperature
Problem
Compressor runs for a
long time/continuously
Compressor does not
run often
Unusual noises
Problem
Loud humming
44
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
Cooling area insulation is insufficient
(moist/wet)
Ambient temperature too high
Insufficient ventilation
Condenser is dirty
Fan defective (if installed)
Battery capacity exhausted
Possible cause
A component of the refrigerant circuit
cannot move freely (touching the wall)
There is a foreign object stuck
between the cooling unit and the wall
Fan noise (if installed)
HDC-270
Remedy
Secure the sensor
Change the thermostat
–
Remedy
Defrost the vaporiser
Adjust/replace the door
seal
–
Move the refrigerator to
another location
Clean the condenser
Replace the fan
Charge the battery
Remedy
Bend the component
carefully away from the
obstruction
Remove the foreign object
–