Troubleshooting CFF12, CFF18, CFF20, CFF35, CFF45, CFF70DZ
20
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 18 or chapter “Replacing the
device DC fuse” on page 18.
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.
When operating from
the DC outlet:
The ignition is on
and the device is not
working and the LED
is not lit.
The DC outlet is dirty.
This results in a poor
electrical contact.
If the plug of your cooler becomes very
warm in the DC outlet, either the DC
outlet must be cleaned or the plug has
not been assembled correctly.
The fuse of the DC plug
has blown.
Replace the fuse in the DC plug, see
chapter “Replacing the DC plug fuse” on
page 19.
The device DC fuse has
blown.
Replace the defective fuse, see chapter
“Replacing the device DC fuse” on
page 18.
The vehicle fuse has
blown.
Replace the vehicle’s DC outlet fuse.
Please refer to your vehicle’s operating
manual.
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