Malfunction remedy
Troubleshooting overview
Malfunction
Pump does not start
Pump does not transport fluid
Insufficient delivered quantity
Pump switches off after operating
briefly
36
Cause
No mains voltage
Faulty connection between pump
and controller
Pump not switched on
Filter housing clogged
Excessively soiled water
Pump is set too low
The impeller unit is blocked
Filter housing clogged
Excessive loss in the supply lines
Pump is set too low
Excessively soiled water
The impeller unit is blocked
Pump has run dry.
Remedy
• Check the mains voltage.
• Check supply lines.
Check connection, and if needed
reconnect
Switch the pump on at the control-
ler
Clean strainer casings
Clean the pump. The pump auto-
matically switches on again once
the motor has cooled down.
Increase the rotation speed of the
pump at the controller
Disconnect the power supply and
remove obstacle. Then switch the
pump on again.
Clean strainer casings
• Select larger hose diameter
• Adjust stepped hose adapter to
hose diameter
• Reduce hose length to minimum
necessary
• Avoid unnecessary connection
elements
Increase the rotation speed of the
pump at the controller
Clean the pump. The pump auto-
matically switches on again once
the motor has cooled down.
Disconnect the power supply and
remove obstacle. Then switch the
pump on again.
Flood the pump. Fully submerge
the pump for operation in the
pond.