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WARNING:
Check whether any changes at the fan. A more detailed explanation of the problems and the possible causes
of these problems is given in "troubleshooting" section. For questions about the changes during periodic
observations, you can contact VENCO or other competent adviser.
Make the fan stop until to fix if any vibration appears at fan.
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The changes of sound level at fan can be a sign to fix a failure.
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Changes in current drawn by the motor indicate a problem with the system. Increase at the current, the
system may indicate that large-scale changes.