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Operation
CAUTION
Risk of burns due to hot water. Water in the pump may be heated to a high temperature in the event of defective elec-
tronics or lack of water supply on the suction side.
Disconnect the power plug before carrying out any work on the unit.
Allow the water in the pump to cool down.
Start-up of the device
It is necessary to fill the pump and expel the air from the suction line before using. It can take several minutes to expel
air from the suction line.
How to proceed:
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1. Unscrew the water infill screw.
2. Pour water into the infill opening until it overflows.
3. Screw in the water infill screw again.
4. Open the pressure line if necessary.
5. Insert the power plug into the socket.
6. Switch on the pump.
– The pump starts pumping immediately. The emerging water still contains some air.
Shutting down the pump
How to proceed:
1. Switch off the pump
2. Disconnect the power plug.
3. Depressurise the pressure line by opening the water withdrawal points.
4. Also open any non-return valves fitted in the suction line.
– When the pump is switched off, residual water in the hose may flow back and out of the pump intake.
If the pump is to be completely removed:
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5. Remove the connected hoses on the pressure and suction side.
6. Undo the water drain screw and tip the pump to allow the residual water to drain out.
7. Screw in the water drain screw again.
– Check that the seal is in place and correctly functioning.
Storage/winter protection
The unit is not frost-proof and has to be removed and put into storage if minus temperatures are expected.
How to correctly store the unit:
• Drain the water remaining in the unit, in the hoses, pipe and connections as much as possible.
• Thoroughly clean the unit and renew any damaged parts.
• Store the unit in a dry and frost-free place.
• Protect open plug connections from moisture and dirt.
Malfunction remedy
Malfunction
Pump does not start.
Pump switches off after operating briefly
The pump is not delivering, or the deliv-
ered quantity is insufficient.
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Cause
The pump is switched off.
Power supply interrupted
Overload protection has switched the pump
off due to overheating.
Blockage on the suction side
The pump is not sufficiently filled with wa-
ter.
Pressure line blocked
Suction line blocked
Leak on the suction side
External pre-filter (optional) clogged
Remedy
Switch on the pump.
Check the electrical plug connections.
Clean the connection on the suction side and the suc-
•
tion line.
Allow the pump to cool down.
•
Clean the intake and suction line.
Fill the pump and ensure that the water does not flow out
on the pressure side.
Open the water withdrawal point on the pressure side.
•
•
Route the pressure hose without kinks.
•
Clean the connection on the suction side and the suc-
tion line.
Route the suction hose without kinks
•
Eliminate leak on the suction side
Clean the pre-filter