Troubleshooting - Dometic CoolFreeze CDF-18 Instruction Manual

9

Troubleshooting

Fault
Device does not
function, LED does
not glow.
The cooler does not
cool properly when the
vehicle engine is
switched off.
The device does not
cool (plug is inserted,
"ERROR" LED
flashes).
When operating from
the 12/24-V socket
(cigarette lighter):
The ignition is on
and the device is not
working and the LED
is not lit.
Pull the plug out of the
socket and make the
following checks.
"ERROR" LED flashes
for longer than 2 minu-
tes, as follows: 3 flas-
hes, pause, 3 flashes,
pause, ...
Possible cause
There is no voltage
present in the 12/24 V
socket (cigarette lighter)
in the vehicle.
No voltage present in
the AC voltage socket.
The cooler has been
connected with the
wrong polarity.
The battery voltage is
not sufficient for running
the cooler when the
vehicle engine is
switched off.
Battery voltage is too
low.
The cigarette lighter
socket is dirty. This
results in a poor electrical
contact.
The fuse of the 12/24 V
plug has blown.
The vehicle fuse has
blown.
Device is defective.
Suggested remedy
The ignition must be switched on in
most vehicles to supply current to the cig-
arette lighter.
Try using another plug socket.
Check how the cables are laid for
the cooler.
Set the battery monitor to LOW.
NOTE: This setting can result in the bat-
tery voltage becoming too low to start the
vehicle if the cooler has been running off
it for a long time.
Test the battery and charge it as needed.
If the plug of your cooler becomes very
warm in the cigarette lighter socket,
either the lighter socket must be cleaned
or the plug has not been assembled
correctly.
Replace the fuse (5 A) in the cigarette
lighter plug, see "Replacing the plug fuse
(12/24 V)" on page 29.
Replace the vehicle's 12/24 V socket fuse
(usually 15 A). Please refer to your
vehicle's operating manual.
This can only be repaired by an author-
ised customer services unit.
Troubleshooting
31