Faults - Wilo Star-Z NOVA C Instrucciones De Instalación Y Funcionamiento

Cleaning
Replacing the motor head

Faults

Pump does not
start.
Pump is making
noises.
Installation and operating instructions Wilo-Star-Z NOVA
Clean the outside of the pump with a slightly
damp cloth only. Do not use detergents.
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
Page 26.
Replacing the motor head
6 Maintenance/faults
Order the service motor from a specialist retailer.
7
Causes
Interruption in the power
supply, short- circuit or
defective fuses.
Time switching function
has switched off auto-
matically (Star-Z NOVA C
version only).
Motor is blocked, e.g. by
deposits from the water
mains.
Motor scraping, e.g.
through deposits from
the water mains
Running dry, too little
water.
Note: If you cannot remedy the fault,
contact a specialist retailer.
Maintenance/faults
Page 26.
Remedies
Have the power supply
checked by a qualified
electrician.
Check the plug clock
timer setting.
Have the pump removed
by a qualified technician
Page 26.
Check that the impeller
can move by turning it
and rinse out the dirt that
has accumulated.
Check the check valves,
they must be fully open.
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