New replacement fan not as good

Old 11-13-22, 04:41 PM
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New replacement fan not as good

Our 20 year old bathroom fan was getting very noisy ( bearings?) but it did a good job of keeping our large bathroom mirror clear of condensation. We replaced the motor fan within the ceiling housing with exactly the same specific model ( power and screw mounts) .
its nice and quiet as it used to be..,But the large mirror is covered in water/condensation. Should I be worried about mold? Why the difference? Maybe mounted wrong?
thanks !
Old 11-13-22, 04:44 PM
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Try putting a piece of toilet paper against the grill. If it's working properly it should stick there.
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Old 11-14-22, 01:10 AM
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Be sure to remove the toilet paper after testing it.

Do you have an air flow to help the fan? I believe that after taking shower and finishing in the bathroom leaving the door cracked open will help allow air to get into the bathroom. If your bathroom is air tight and the door is closed no air circulation I would think
Old 11-14-22, 05:10 AM
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Fan could be installed with air flow into the bathroom instead of out of the bathroom. Test using PJmax's post. If paper doesn't stick flip fan 180 degrees.
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