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manufacturer.
Damage or dust layer on impeller.
Clean the impeller, if necessary balance it or replace it.
If the reason for the malfunction can not be clearly determined, inform the customer service
of the manufacturer.
After a case of fire the fan must be checked by the manufacturer.
9.0 GUARANTEE
Guarantee will be valid only if transport, storage, installation, connection and periodical
maintenance have been executed in compliance with the above instructions and local
regulations regarding electric installation and fire protection. For validity of the guarantee
duly filled and signed control report has to be submitted.
It is very important that the installation of the fan is done with all necessary
care, to ensure uninterrupted and safe operation
.
