Troubleshooting - Dometic COOLMATIC HDC155 Installation & Operating Manual

HDC155
12

Troubleshooting

Compressor does not run
Fault
U = 0 V
TERM
≤ U
U
TERM EIN
Start attempt with
≤ U
U
TERM AUS
Start attempt with
≥ U
U
TERM EIN
Electric circuit between
the pins in the
compressor interrupted
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
EN
Possible cause
There is an interruption in the
battery – electronics connection
Main switch faulty (if installed)
Additional supply line fuse has blown
(if installed)
Battery voltage is too low
Loose cables
Poor contact (corrosion)
Battery capacity too low
Cable cross section too small
Ambient temperature too high
Insufficient ventilation
Condenser is dirty
Fan defective (if installed)
Defective compressor
Troubleshooting
Remedy
Establish a connection
Replace the main switch
Replace the supply line
fuse
Charge the battery
Establish a connection
Replacing the battery
Change the cable
(see table on page 20)
–
Move the refrigerator to
another location
Clean the condenser
Replace the fan
Replace the compressor
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