Wilo Flumen OPTI-TR 20-1 Instrucciones De Instalación Y Funcionamiento página 315

11 Spare parts
Installation and operating instructions Wilo-Flumen OPTI-TR 20-1, 28-1, 30-1, 40-1 Wilo-Flumen EXCEL-TRE 20, 30, 40
Spare parts
⇒ Have the voltage of individual phases checked by a qualified electrician. Con-
tact the power grid operator.
5. Incorrect direction of rotation.
⇒ Have the connection corrected by a qualified electrician.
6. Increased current consumption due to clogging.
⇒ Clean propeller and mechanical seal.
⇒ Check the pre-treatment.
7. The density of the fluid is too high.
⇒ Check unit design.
⇒ Contact customer service.
Fault: Mixer runs, but system parameters are not reached
1. Propeller clogged.
⇒ Clean propeller.
⇒ Check the pre-treatment.
2. Incorrect direction of rotation.
⇒ Have the connection corrected by a qualified electrician.
3. Signs of wear on propeller.
⇒ Inspect propeller and replace if necessary.
4. The connection only has two phases.
⇒ Have the connection checked and corrected by a qualified electrician.
Fault: Mixer does not run smoothly and is noisy
1. Improper duty point.
⇒ Check fluid density and viscosity.
⇒ Inspect system configuration, and contact customer service.
2. Propeller clogged.
⇒ Clean propeller and mechanical seal.
⇒ Check the pre-treatment.
3. The connection only has two phases.
⇒ Have the connection checked and corrected by a qualified electrician.
4. Incorrect direction of rotation.
⇒ Have the connection corrected by a qualified electrician.
5. Signs of wear on propeller.
⇒ Inspect propeller and replace if necessary.
6. Motor bearings have worn.
⇒ Inform customer service; send the mixer back to the factory for recondition-
ing.
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:
▪ Telephone or written support.
▪ On-site support.
▪ Inspection and repair at the factory.
Costs may be incurred if you request customer services! Please contact customer ser-
vices for more information.
Spare parts are ordered via customer service. To avoid return queries and incorrect or-
ders, the serial or article number must always be supplied. Subject to change without
prior notice!
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