Dometic COOLMATIC CRX50 Pro Instructions De Montage Et De Service page 26

Troubleshooting
Problem
Electric circuit between
the pins in the compres-
sor interrupted
No input voltage for
controller and load
dump board
U Voltage between the positive and negative terminals of the electronics
Term
U Cut-in voltage of the electronics
ON
U Cut-off voltage of the electronics
OFF
Poor cooling, increase in interior temperature
Problem
Compressor runs for a
long time/continuously
Compressor does not
run often
Unusual noises
Problem
Loud humming
26
Possible cause
Defective compressor
Defective controller and load dump
board assembly
Possible cause
Ambient temperature too high
Insufficient ventilation
Condenser is dirty
Faulty fan
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
CRX50 Pro, CRX65 Pro
Remedy
Contact customer service
Replace complete control
module consisting of con-
troller and load dump
board
Remedy
–
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
Replace the fan
EN