Faults, Causes And Remedies; Spare Parts - Wilo Economy-MHI Einbau- Und Betriebsanleitung

8. Faults, causes and remedies

Fault
Pump does not run
Pump runs but does not pump
Pump does not pump evenly
Pressure is insufficient
Pump vibrates
Motor overheats,
motor cut-out activates
If the fault cannot be resolved, please
contact the Wilo customer service.

9. Spare parts

Spare parts may be ordered via the Wilo customer
service.
To avoid queries and incorrect orders, all data
from the rating plate must be specified with
every order.
The spare parts catalogue is available at
www.wilo.com.
10. Disposal
Information on the collection of used electrical
and electronic products.
Proper disposal and appropriate recycling of this
product prevents damage to the environment
and dangers to your personal health.
NOTICE: Disposal in domestic waste is forbid-
den!
In the European Union, this symbol can appear on
the product, the packaging or the accompanying
documentation. It means that the electrical and
electronic products in question must not be dis-
posed of along with domestic waste.
Installation and operating instructions - Wilo-Economy-MHI
Cause
no power
motor safety switch activated
wrong direction of rotation
pipe or pump components blocked by
foreign body
air in inlet pressure gland
inlet pipe too narrow
inlet too high
wrong choice of pump
wrong direction of rotation
flow is too small, inlet pipe blocked
valve not sufficiently open
foreign body blocking the pump
foreign body in the pump
pump not properly fixed to the base
base is not sufficiently heavy
insufficient voltage
foreign body
bearing damaged
ambient temperature too high
To ensure proper handling, recycling and disposal
of the used products in question, please note the
following points:
• Only hand over these products at designated,
certified collecting points.
• Observe the locally applicable regulations!
Please consult your local municipality, the near-
est waste disposal site, or the dealer who sold
the product to you for information on proper dis-
posal. For further information on recycling, go to
www.wilo-recycling.com.
Subject to change without prior notice.
Remedies
check fuses, float switches and cables
eliminate motor overload
interchange two phases of the mains
connection
check and clean pipe and pump
seal inlet pressure gland
fit a larger inlet pipe
position the pump lower
fit a more powerful pump
interchange two phases of the mains
connection
clean filter and inlet pipe
open valve
clean the pump
remove foreign body
tighten anchor bolts
fit a heavier base
check voltage
clean pump
have pump repaired by customer services
provide cooling
English
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