Interesting post. Seems like they all hum eventually. I would never have thought to look for caps in a fan. Good of you to figure that one out.
OT: Fixing Listening Room Hum with a Ceiling Fan Cap
Living in a 20 year old home has disadvantages, if you happen to be the owner when the appliances all start to fail together.
I was pretty sure this was the case with my ceiling fans. Besides humming loudly one failed to start without pushing. End of the line I thought.
I was wrong, the humming and low torque were caused by degraded motor capacitors. In our world metalized polypropelyne capacitors almost never fail, especially in a speaker crossover, but I guess the continuous use in series with an AC current wears these out early.
I had always thought that a humming ceiling fan was normal for an old fan. I was wrong, it's not. Replaced my caps and my listening room is much quieter!
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- 5 posts total
- 5 posts total

