4. STARTING THE PUMP
First time the pump is used, if it has a side outlet it should be placed on its side under
water to allow any air inside the pump to come out of discharge outlet.
Once the air is removed fit the discharge pipe to outlet.
Make sure pump is secure in pit and cannot fall over.
Adjust float lead length if necessary.
Turn power supply on to pump.
Protection against overload conditions
The pump is equipped with a thermal overload protector. If the motor overheats, the
thermal protector automatically stops the pump. Cooling time is around 15 – 20 min,
after which the pump automatically restart. If the overload cut-out is tripped, it is
absolutely necessary to search for the cause and eliminate it.
5. TROUBLESHOOTING
Before performing any troubleshooting operation, it is necessary to disconnect the pump
from the power supply (by removing the plug from socket).
Problem
Possible Cause
Solutions
The pump does
not start
a) No power going to pump a) plug lead securely into socket,
check that power socket is
working.
b) Float switch has not
enabled pump.
b) make sure float is not jammed
and that water depth is
adequate.
c) impeller jammed
c) disconnect from power and
check impeller is free to rotate.
3. OPERATION
The pump must only be used when immersed in water. If the water runs out the pump
must be stopped by either the float switch or turning off the power switch.
The pump must never be allowed to run dry.
Never leave the pump in operation when the delivery pipe is clogged.
The pump must be placed in a stable position inside a collection pit or in the lowest part
of the place where it is to be installed.
All pumps except the ProSub6 & 9 have an adjustable float switch which starts and stops
the pump automatically.
The water level that prompts the starting and stopping of the pump can be adjusted by
modifying the length of the float switch cable between the support and the float switch.
Float cable must be clipped into the float support and at a length that float cannot touch
bottom of pit.
The length of the float cable must never be shorter than 10cm.
The float must be able to move freely while the pump is running and not get hooked on
side of pit, ensure dimensions of pit are suitable.
ProSub6 & 9
have integrated float switch specifically designed for uses in narrow pits
with dimensions as small as 20cm x 20cm. The water level that prompts the starting and
stopping cannot be adjusted in these models. These two models have an automatic or
manual operation.
Automatic mode: The integrated float switch starts and stops the pump automatically.
To select this mode push the pumps T shaped ,vertical lever into the down position.
Manual operation: To start the pump, lift the T shaped, vertical lever. In this position the
pump will draw down to 2-3 mm. Push lever back down to stop the pump.
