Maintenance/faults
Installation and operating instructions Wilo-Star-Z 15
21
Engl
ish
6
Maintenance/faults
To clean
Clean the outside of the pump with a lightly
moistened cloth only. Do not use detergents.
To replace the
motor head
Replacing the motor head
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Page 19.
7
Spare parts
Order the service motor from the trade.
8
Warning:
When removing the motor head
or pump, hot fluid may spurt out under high
pressure.Allow the pump to cool down before-
hand.
Close the stop valves before removing the pump
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Page 19.
Fault
Cause
Remedy
Pump does not
start.
Interruption in the power
supply, short- circuit or
defective fuses.
Have the power supply
checked by a qualified
electrician.
Timing function has
switched off automati-
cally (Star-Z 15 C version
only).
Check the plug clock
timer setting.
Motor is blocked, e.g.
through deposits from
the water mains.
Have the pump removed
by a qualified person
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Page 19.
Check that the impeller
can move by turning it
and rinse out the dirt that
has accumulated.
Pump makes noises.
Motor scraping, e.g.
through deposits from
the water mains
Running dry, too little
water.
Check the shut-off
valves, they must be fully
open.
NOTE :
If you cannot remedy the fault,
contact the trade.
