CFF12, CFF18, CFF20, CFF35, CFF45, CFF70DZTroubleshooting
29
➤ Occasionally clean the cooling device interior and exterior with a damp cloth.
➤ Make sure that the air inlet and outlet vents on the device are free of any dust and
dirt, so that heat can be released and the device is not damaged.
7 Troubleshooting
Problem Possible cause Remedy
Device does not
function, LED does
not glow.
No voltage present in
the connected power
outlet.
Plugged in DC power outlet: In most
vehicles the ignition must be turned on
before power will be supplied to the DC
power outlet.
Plugged in AC power outlet: Try using
another plug outlet.
One of the device fuses
is defective.
Replace the defective device fuse, see
chapter “Replacing the AC fuse” on
page 27 or chapter “Replacing the
device DC fuse” on page 27.
The integrated AC
adapter is defective.
This can only be repaired by an
authorized repair center.
The device does not
cool (plug is inserted,
“POWER” LED is lit).
Defective compressor. This can only be repaired by an
authorized repair center.
The device does not
cool (plug is inserted,
“POWER” LED flashes
orange, display is
switched off).
Battery monitor is set
too high.
Select a lower battery monitor setting.
Battery voltage is too
low.
Test the battery and charge it as needed.
DometicCFF12-18-20-35-45-70DZ_OPM_4445103133_APAC-en_202x-xx-xx.book Page 29 Tuesday, May 2, 2023 10:39 AM
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