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NMS Zen O Home_Mise en page 1 14/09/12 08:38 Page15
6 Maintenance/faults
• 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 beforehand.
Close the stop valves before removing the pump.
NOTE: When the motor is removed and running, noises and a change in rotation
may occur. This is normal for this situation.
Faultless operation can only be guaranteed when the pump is operated in fluid.
Faults
Pump does not start
Pump is making
noises
NOTE: If you cannot remedy the fault, contact a specialist retailer.
Pompes Salmson SAS
Causes
Interruption in the power
supply, short-circuit or
defective fuses
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
Air in the pump
Remedies
Have the power supply
checked by a qualified
electrician.
Have the pump removed by a
qualified technician.
Check that the impeller can
move by turning it and rinse out
the dirt that has accumulated.
Have the pump removed by a
qualified technician.
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.
Switch the pump on/off 5 times
for 30 s in each case.
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