GB
Possible problems
Possible reasons
Solutions
The motor does not start
The fuse or thermal switch are
disconnected.
Change the fuse or let the motor cool down so
that the thermal switch turns on.
The motor does not start
or starts and stops
automatically
The pump is blocked.
Dismantle the pump and contact with your
customer service.
The motor does not start
or overheats or starts and
stops automatically
Wrong voltage or frequency.
Check the voltage.
Power voltage should be as per the pump label.
The motor runs but no
water is pumped
Air enters through suction pipes of
the pump.
The foot valve is not properly
submerged. The pump has not been
primed.
Check pipes are sealed.
Check that the foot valve is submerged.
Prime the pump properly.
The motor runs but the
pressure is low or the
flow rate is lower than
normal
Head higher than the expected one.
Water level has been lowered, increasing
consequently the total water head.
Check geometric height and charge loss.
Adjust suction head.
The motor runs but stops
automatically
Insufficient aired place.
Liquid viscosity too high.
Increase ventilation.
Replace the pump with a more suitable one.
Replace the pump with a
more suitable one
Solid particles inside the pump.
Switch off the pump and contact with your
customer service.
The shaft spins with
difficulty
Hot motor ball bearings.
Replace motor ball bearings.
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