Troubleshooting - Renkforce 1519510 Operating Instructions Manual

11. Troubleshooting

With this barrel pump, you have purchased a product built to the state of the art and operationally safe. Nevertheless,
problems or errors may occur. Therefore, observe the following information about troubleshooting.
Barrel pump does not take in water
• Open any present shut-off valve on the pressure-side, since air cannot escape from the hose/telescopic tube or
in the pump. Move the pump back and forth a little. Briefly pull the mains plug from the socket and plug it back in.
• Clean intake openings (disconnect barrel pump from the mains voltage first!).
• The water level is too low or air is sucked in as well.
The barrel pump does not start up or stops in operation
• Check the power supply or the circuit protection and the FI protection switch. If the FI protection switch has trig-
gered, disconnect the barrel pump from the mains voltage and check for damage (e.g. mains cable).
• The pump wheel inside the barrel is blocked by dirt. Disconnect the barrel pump from the mains voltage, remove
the hose and flush the inside of the barrel pump with water.
• The float switch has not been placed correctly.
• The overtemperature protection triggered. Disconnect the barrel pump from the mains voltage and let the barrel
pump cool off (at least 30 minutes). Remove the cause for triggering (e.g. water temperature too high, running dry
too long, etc.).
Conveyed volume reduces or is too low
• Check the intake openings for contamination.
• The barrel pump sucks in air because the intake openings are no longer completely submersed.
• Check the attachment of the hose to the barrel pump.
• Check the hose for leaks or bends.
• The displacement reduces due to the principle the larger the conveyor height.
• The hose diameter is too low.
Float switch does not trigger or does not switch off
• The float switch is not placed correctly (e.g. the float switch is clipped too close to the cable holder (6)).
• A ttach the cable to the float switch at the side of the cable holder (6), so that the float switch can move freely. Only
this way can it sink down at a low water level and shut off the barrel pump in time.
• If the float switch is attached to the side of the telescopic tube via the holding clip (10), it is out of operation and the
barrel pump will not be switched off if the water level is too low.
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