This could be a whirring or clicking and generally is cause by the following
1. Can be caused by components trapped in the fan during installation- if so then remove.
2. Broken fan impeller - replace the fan.
Excessive noise - Exhaust Fans
This could be a whirring or clicking and generally is cause by the following
1. Can be caused by components trapped in the fan during installation- if so then remove.
2. Broken fan impeller - replace the fan.
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