Troubleshooting
Problem Cause Solution
The compressor doesn’t
start.
No mains voltage is
present.
− Check the mains connection line,
mains plug, safety valve and
socket.
The mains voltage is
too low.
− Make sure that the mains voltage
corresponds to the specification
on the rating plate.
− Avoid using an extension cord that
is too long.
− Only use an extension cord with a
sufficient core cross-section.
The ambient tem-
perature is too low.
− Do not operate the compressor at
ambient temperatures below +5 °C.
There is not enough
oil in the crankcase.
− Check the oil level and, if necessary,
add oil as described in the chapter
“Adding and changing oil”.
The motor has over-
heated. The over-
load protection has
triggered.
− Let the motor cool off. If necessary,
rectify the cause of overheating.
− Reset the reset button for the over-
load protection as described in the
chapter “Overload protection”.
The compressor doesn’t
stop. Once the maxi-
mum pressure has been
reached, the safety
valve will automatically
activate.
The compressor is
defective.
− Contact customer service or an
authorised specialist workshop to
have the compressor repaired.
The compressor is run-
ning, but no pressure is
created.
The gaskets are
defective.
− Check the gaskets.
− Have defective gaskets replaced
by a specialist workshop or the
After Sales Support.
The drain cock for
condensed water is
not closed or has a
leak.
− Close the drain cock for con-
densed water.
− Check the gasket for the screw
and if necessary, replace it. Close
the drain cock for condensed
water.
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