Troubleshooting - Dometic Buttner MT120FL Installation And Operating Manual

➤Regularly check live cables for insulation faults,
breaks, rodent damage, weathering and that all
connections are tight and corrosion free.
➤Regularly check the surface of the solar panels
for cracks and missing or defective components.

Troubleshooting

Fault
The solar system does not work
(no power output).
The solar system does not work
properly (low power output).
12
Possible cause
Insulation faults, breaks or loose
connections at the live cables.
Faulty solar charger.
Objects or dirt are blocking out
light.
Overheating of the solar pan-
els.
One solar panel in the array
failed.
4445103706
➤For maximum performance keep the solar panel
free of dirt and shading, e.g. dust and leaves.
Clean the solar panels with a soft, damp cloth or
sponge.
➤Occasionally check the sealing of the roof duct
for any damage.
Suggested remedy
➤ Check live cables for insulation faults,
breaks or loose connections.
➤ Pull out the fuse on the solar charger and
check the solar panel voltage (VoC) on the
solar charger.
➤ If you cannot find an error, contact an autho-
rized service agent.
➤ Replace the solar charger.
➤ Check for obstructions and ensure that the
solar panels are not blocked by shadows.
➤ Move the vehicle to a more suitable loca-
tion.
➤ Remove any dirt.
➤ Allow the solar panels to cool down.
➤ Move the vehicle to a more suitable loca-
tion.
➤ Ensure sufficient air circulation around the
solar panels.
➤ Pull out the fuse on the solar charger and
check the solar panel voltage (VoC) on the
solar charger.
➤ Check the solar panels for micro cracks.
➤ Check the solar panel for delamination.
➤ Replace the solar panel if necessary.