Spare parts
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Installation and operating instructions Wilo-Padus UNI
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6. Increased power consumption through jammed hydraul-
ics.
⇒ Clean the hydraulics and check the inlet.
7. The density of the fluid is too high.
⇒ Contact customer service.
Fault: Pump runs, there is no volume flow
1. There is no fluid.
⇒ Check the inlet, open all gate valves.
2. Inlet clogged.
⇒ Check the inlet and remove clogging.
3. Hydraulics jammed.
⇒ Clean the hydraulics.
4. Pipe system on the pressure side or pressure hose
clogged.
⇒ Remove clogging and replace the damaged com-
ponents if necessary.
5. Intermittent operation.
⇒ Check the switching system.
Fault: Pump starts, duty point is not reached
1. Inlet clogged.
⇒ Check the inlet and remove clogging.
2. Slide valves on the pressure side closed.
⇒ Open all gate valves completely.
3. Hydraulics jammed.
⇒ Clean the hydraulics.
4. Incorrect direction of rotation.
⇒ Have the connection corrected by a qualified elec-
trician.
5. Air cushion in the pipe system.
⇒ Vent the pipe system.
⇒ If air cushions occur frequently: Locate and prevent
the air intake, if required install ventilation systems
at specified locations.
6. Pump pumping against excessive pressure.
⇒ Open all gate valves on the pressure side com-
pletely.
7. Signs of wear on the hydraulics.
⇒ Have the components (impeller, suction port, pump
housing) checked and replaced by customer service.
⇒ Impeller clearance too great. Adjust the impeller
clearance.
8. Pipe system on the pressure side or pressure hose
clogged.
⇒ Remove clogging and replace the damaged com-
ponents if necessary.
9. Strongly gassing fluid.
⇒ Contact customer service.
10.The connection only has two phases.
⇒ Have the connection checked and corrected by a
qualified electrician.
11.Excessive decrease in the fill level during operation.
⇒ Check supply/capacity of the system.
⇒ Have the switching points of the level control
checked and adjusted if necessary.
Fault: The pump does not run smoothly and is noisy
1. Improper duty point.
⇒ Check the pump configuration and the duty point,
contact customer service.
2. Hydraulics jammed.
⇒ Clean the hydraulics.
3. Strongly gassing fluid.
⇒ Contact customer service.
4. There are only two phases at the connection.
⇒ Have the connection checked and corrected by a
qualified electrician.
5. Incorrect direction of rotation.
⇒ Have the connection corrected by a qualified elec-
trician.
6. Signs of wear on the hydraulics.
⇒ Have the components (impeller, suction port, pump
housing) checked and replaced by customer service.
7. Motor bearings have worn.
⇒ Inform customer service; send the pump back to the
factory for overhauling.
8. Pump is installed under tension.
⇒ Check installation, install rubber compensators if
necessary.
Further steps for troubleshooting
If the points listed here do not rectify the fault, contact customer
service. Customer service can assist in the following ways:
ƒ
Telephone or written support.
ƒ
On-site support.
ƒ
Inspection and repair at the factory.
Costs may be incurred if you request customer services! Please
contact customer services for more information.
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Spare parts
Spare parts are ordered via customer service. To avoid return
queries and incorrect orders, the serial or article number must al-
ways be supplied.
Subject to change without prior notice!
