8.
Troubleshooting
In order to prevent damage or serious injury while rectifying machine faults, the following points must be observed:
• Only attempt to rectify a fault if you have qualified personnel. This means each job must be carried out by
trained specialist personnel, for example electrical work must be performed by a trained electrician.
• Always secure the machine against an accidental restart by disconnecting it from the electric system. Take
appropriate safety precautions.
• Independent work on the machine is at one's own risk and releases the manufacturer from any warranty
obligation.
Failure
Low pump capacity
Motor does not start
Motor operates, pump gives no
liquid
Pump does not switch automati-
cally (either a float switch or a
pressure-switch is installed)
Further steps for troubleshooting
If the items listed here do not help you rectify the fault, contact our customer service. They can help you as follows:
• Telephone or written help from customer service
• On-site support from customer service
• Checking and repairing the machine at the factory
Note that you may be charged for some services provided by our customer support. Customer service will provide
you with details on this.
2016/04
TROUBLESHOOTING
Cause
Discharge blocked / breaked
Non-return valve polluted
Head to high
No power available
Plug is not plugged in
Pump is blocked by impurities
Motor is defect
Electronics are defect
Discharge blocked / breaked
Non-return valve polluted
Float switch polluted
Pressure-switch is defect
39/120
Remedy
Clean / remove break
Clean
Reduce head
Check power supply
Insert the plug
Clean tank and pump housing
Exchange by qualified personnel
Exchange by qualified personnel
Clean / remove break
Clean
Clean
Exchange by qualified personnel