CFF12, CFF20, CFF35, CFF45, CFF70DZ Troubleshooting
29
8 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 vehi-
cles 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.
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 chap-
ter “Replacing the DC plug fuse” on
page 28.
The device DC fuse
has blown.
Replace the defective fuse, see chapter
“Replacing the device DC fuse” on
page 27.
The vehicle fuse has
blown.
Replace the vehicle’s DC outlet fuse. Please
refer to your vehicle’s operating manual.
The display shows an
error message (e.g.
“Err1”) and the appli-
ance does not cool.
The appliance has
switched off due to an
internal fault.
This can only be repaired by an authorized
repair center.
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