Wilo Vardo WEEDLESS-F Notice De Montage Et De Mise En Service page 261

Installation and operating instructions Wilo-Vardo WEEDLESS-F
Faults, causes and remedies
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.
WARNING
No persons may remain in the working area of the mixer!
Persons can suffer (serious) injury while the mixer is in operation! No persons may
therefore be present inside the working area. If persons should enter the mixer's
working area, deactivate the mixer and safeguard it against being switched on again
by unauthorised persons!
WARNING
The propeller blade has sharp edges!
Sharp edges can form on the propeller blades. There is a risk of limbs being severed.
Wear safety gloves to protect against cuts.
Fault: The mixer does not start up
1. Interruption to the power supply.
⇒ Is the main switch ON?
⇒ Are all phases live?
⇒ Is the connection cable damaged?
2. Fuse is defective.
⇒ Have fuses been checked?
⇒ Are fuses correctly inserted?
3. Motor protection tripped.
⇒ Is excess current release set to rated current?
⇒ Has excess current release been reset?
4. Propeller stiff or blocked.
⇒ Was a test run conducted in an empty basin?
⇒ Clean propeller. CAUTION! Check the fluid! If the fluid contains coarse
solids, check the pre-treatment.
Fault: Mixer starts up, motor protection trips after short period
1. Propeller stiff or blocked.
⇒ Clean propeller. CAUTION! Check the fluid! If the fluid contains coarse
solids, check the pre-treatment.
2. Elevated solids content.
⇒ Check the pre-treatment.
⇒ Adjust the setting angle of the propeller blades. Consult customer service.
⇒ Check the operating conditions. Consult customer service.
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 other services are used from customer service! For more de-
tails, please contact customer service.
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