Troubleshooting And Possible Solutions; Overview Of Possible Malfunctions; Overview Of Possible Causes And Their Remedies; Further Steps For Troubleshooting - Wilo EMUport CORE Manual De Instrucciones

TROUBLESHOOTING AND POSSIBLE SOLUTIONS

3. Position the pump horizontally on a firm surface
with the screw plug facing upward.
Make sure that the pump cannot fall over and/
or slip!
4. Carefully and slowly unscrew the screw plug.
Attention: The oil may be pressurised! This can
cause the screw to be ejected at speed.
5. Empty out oil by rotating the pump until the hole
points downwards. Collect the oil in a suitable
container and dispose of it in accordance with the
requirements in the "Disposal" chapter.
6. Rotate the pump back until the hole is pointing
upwards again.
7. Pour the new oil in through the hole for the screw
plug. Note the recommended oils and filling
quantities!
8. Clean the screw plug, replace the seal ring and
screw it back in.
9. Place the sewage pump back on the pipework.
10. Fasten the suction port with the clamp and the
discharge port with the screwed connections.
Max. tightening torques:
• Clamp: 7 Nm
• Flange: 45 Nm
9. Troubleshooting and possible solutions
In order to prevent damage or serious injury when
remedying malfunctions on the lifting unit, the
following points must always be observed:
• Attempt to remedy a fault only if you have
qualified staff. This means that each job must be
carried out by trained specialist personnel. For
example, electrical work must be performed by a
trained electrician.
• Always secure the lifting unit to prevent it re-
starting inadvertently, by disconnecting it from
the electrical mains. Take appropriate safety
precautions.
• Also comply with the installation and operating
instructions provided with the accessories used!
• Unsanctioned modifications to the lifting unit are
made at the end-user's own risk and release the
manufacturer from any warranty obligations!

9.1. Overview of possible malfunctions

Fault
Lifting unit does not pump
Volume flow too low
Current consumption too
high
Delivery head too small
Lifting unit runs roughly /
loud noise
Installation and operating instructions Wilo-EMUport CORE
Identifier for cause and
remedy
1, 3, 5, 6, 7, 8, 9, 10, 11, 12,
15, 16
1, 2, 3, 4, 5, 7, 8, 11, 12, 13
1, 2, 3, 4, 5, 7, 13
1, 2, 3, 4, 5, 8, 11, 12, 13
1, 2, 3, 9, 12, 13, 14

9.2. Overview of possible causes and their remedies

1. Inlet or impeller clogged
• Remove deposits from the inlet, reservoir and/
or pump ⇒ Wilo customer service
2. Incorrect direction of rotation
• Exchange 2 phases of the current feed ⇒ Wilo
customer service
3. Wear of inner parts (e.g. impeller, bearing)
• Replace worn parts ⇒ Wilo customer service
4. Operating voltage too low
• Have the mains connection checked ⇒ elec-
trician
5. Running on two phases
• Replace defective fuse ⇒ electrician
• Check the electrical connection ⇒ electrician
6. Motor does not start because there is no voltage
• Check the electrical connection ⇒ electrician
7. Motor winding or electric cable defective
• Have the motor and electrical connection
checked ⇒ Wilo customer service
8. Non-return valve clogged
• Clean non-return valve ⇒ Wilo customer
service
9. Water level dropped too low in the tank
• Check level control device and replace if neces-
sary ⇒ Wilo customer service
10. Defective level control signal transmitter
• Check signal transmitter and replace if neces-
sary ⇒ Wilo customer service
11. Slide valve in the pressure pipe is not open or only
insufficiently
• Fully open the slide valve.
12. Impermissible amount of air or gas in fluid
• ⇒ Wilo customer service
13. Radial bearing in the motor defective
• ⇒ Wilo customer service
14. System-related vibrations
• Check elastic connections of the piping ⇒
notify Wilo customer service if necessary
15. Winding temperature monitoring switched off
due to excessive winding temperature
• The motor switches back on automatically after
the winding has cooled down.
• Frequent switch-off by the winding tempera-
ture monitoring ⇒ Wilo customer service
16. Electronic motor protection triggered
• Rated current exceeded, reset the motor pro-
tection using the reset button on the switch-
gear
• Frequent switch-off by the electronic motor
protection ⇒ Wilo customer service

9.3. Further steps for troubleshooting

If the points listed here do not rectify the fault,
contact Wilo customer service.
Please note that you may be charged for some
services provided by our customer service! For
more details, please contact Wilo customer
service.
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