Troubleshooting - Renkforce 1712590 Operating Instructions Manual

11. Troubleshooting

With the garden pump, you have purchased a reliable product that was built according to state of the art. Even then,
problems and malfunctions can occur. Therefore, observe the following information on how to solve the possible
malfunctions.
Garden pump does not suck
• Open any shut-off ball valve on the pressure side, as the air in the hose or in the pump cannot escape.
• If necessary, fill the suction hose and the garden pump with water.
• Turn the garden pump off and then on again.
• Use a return stop at the end of the suction hose.
• Check the coarse filter at the end of the suction hose for contamination.
• Check the suction hose and all connectors for leaks.
• The water level is too low, only air is sucked in.
Garden pump does not start or stops during operation
• Is the garden pump switched on?
• Check the mains supply or the circuit breaker and the ground fault circuit interrupter. If the ground fault circuit
interrupter has tripped, disconnect the garden pump from the mains voltage and check for any damage (such as
mains cable/housing).
• The pump impeller inside the garden pump is blocked by dirt. Disconnect the garden pump from the mains voltage,
remove the hoses as well as any filters. Rinse the inside of the garden pump and filter with clean water.
• The overtemperature protection has tripped. Disconnect the garden pump from the mains voltage and let the
garden pump cool down (at least 30 minutes). Eliminate the cause of the trip (e.g. water temperature too high, dry
running too long etc.).
Flow rate is lower or too low
• Check the suction hose or its coarse filter for dirt.
• Clean any existing filters.
• The garden pump sucks in the air because the suction hose is not in the water.
• Check the attachment of the suction hose to the garden pump.
• Check the suction hose for leaks or kinks.
• As a matter of principle, the flow rate decreases with greater suction height and discharge head.
• The hose diameter of the suction hose is too low.
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