Instructions
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13. Troubleshooting
The table below contains a list of error symptoms and explains what you can do to solve the
problem if your tool fails to work properly. If the problem persists after working through the
list, please contact your nearest service workshop.
Problem Possible Cause Remedy
Pump does not
start
Mains voltage is not applied
Check mains voltage
Float switch (3) does not switch
position
Pumps has no
discharge
Pump capacity reduces heavily
soiled and abrasive water admix-
tures
Clean pumps
Pump does not
Float switch (3) cannot drop
Set up pumps correctly on the
pit base
-
cient
Reduces pump performance,
through severely contaminated
water and additions in the water
Clean pumps
Pump switches
period
Motor contactor disconnects the
pumps because of water pollution
that is too severe.
Pull out power plug and clean
the pump as well as shaft
Water temperature too high, motor
contactor breaks
Note maximum water tempera-
ture of 35°C!