TROUBLESHOOTING
30.10.02.00604/02
www.schmalz.com
EN | 27
8
Troubleshooting
WARNING
System maintenance by untrained personnel
Serious personal injury
► The system may only be maintained by trained personnel who have read and
understood the operating instructions.
► The system must be depressurized and disconnected from the power supply
for repair and maintenance work.
CAUTION
Hot solenoid valves
Burns
► Do not touch hot components.
► Wear protective gloves.
Problem
Possible cause
Solution
Vacuum generator
does not generate a
vacuum
Elect. connection reversed, faulty
Check connection; correct if necessary
Motor protection switch triggered
Check motor protection switch
Check motor for faults
Thermal overload of motor?
Allow to cool; clean any dust
filters.
Voltage only on two phases
Check connection/fuse
Power consumption increased
Check blower for faults; is it overheated?
(Allow it to cool)
Power supply interrupted
Check the power supply line
Ejector receiving no compressed air
or insufficient compressed air
Check compressed air line
Check pressure
Vacuum generator does not work
Ejector operation:
Remove the ejector, open it and clean it
if necessary (the coating on the inside of
the cover must not be damaged!)
Blower or pump operation:
Have the blower or pump repaired (by
the manufacturer)
Incorrect direction of rotation of the
blower
Check connection; correct if necessary
