Your ceiling fan is running from 120hz alternating current as is anything running off your house current. Anything with a motor or transformer will generate this hum, acoustically, so any surface in contact with the motor or transformer becomes a soundingboard. A ceiling is one humongoloid soundingboard. Some sort of shockmounts are needed to isolate the appliance from its soundingboard. Jay ----- Original Message ----- From: "Shawn Keen" <[EMAIL PROTECTED]> To: <blindhandyman@yahoogroups.com> Sent: Wednesday, August 16, 2006 9:02 AM Subject: Re: [BlindHandyMan] Fan maintenance
> Oo, good topic, what causes fans to humm? Sealing fans that is. > > > ----- Original Message ----- > From: "Dan Rossi" <[EMAIL PROTECTED]> > To: <blindhandyman@yahoogroups.com> > Sent: Wednesday, August 16, 2006 10:47 AM > Subject: Re: [BlindHandyMan] Fan maintenance > > > > Just out of curiosity, can Max or Tom shed a bit more light on the fan > > subject? I wonder if it is not something electronic and not just > > mechanical, such as burned out coils on the transformer or something like > > that. > > > > I also had a big box fan that I ran every night for white noise. I ran it > > on medium speed for years. After a long time, if I turned the fan on > > medium it would not start turning. I could possibly feel a bit of > > vibration like it might sort of been trying to turn, but it just wouldn't > > get started. However, if I turned it on low or high, it worked just fine. > > If I turned it on high, let it get started, then turned it to medium, > > sometimes it would stay going, but more often than not it would just slow > > to a stop. > > > > Later. > > > > -- > > Blue skies. > > Dan Rossi > > Carnegie Mellon University. > > E-Mail: [EMAIL PROTECTED] > > Tel: (412) 268-9081 > > > > > > To listen to the show archives go to link > > http://acbradio.org/handyman.html > > or > > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > > > The Pod Cast address for the Blind Handy Man Show is. > > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > > > The Pod Cast address for the Cooking In The Dark Show is. > > http://www.gcast.com/u/cookingindark/main.xml > > > > Visit The New Blind Handy Man Files Page To Review Contributions From > > Various List Members At The Following Address: > > http://www.jaws-users.com/handyman/ > > Visit the new archives page at the following address > > http://www.mail-archive.com/blindhandyman@yahoogroups.com/ > > For a complete list of email commands pertaining to the Blind Handy Man > > list just send a blank message to: > > [EMAIL PROTECTED] > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.1.405 / Virus Database: 268.10.10/419 - Release Date: 8/15/2006 > > > > > > > > To listen to the show archives go to link > http://acbradio.org/handyman.html > or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > The Pod Cast address for the Cooking In The Dark Show is. > http://www.gcast.com/u/cookingindark/main.xml > > Visit The New Blind Handy Man Files Page To Review Contributions From Various List Members At The Following Address: > http://www.jaws-users.com/handyman/ > Visit the new archives page at the following address > http://www.mail-archive.com/blindhandyman@yahoogroups.com/ > For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: > [EMAIL PROTECTED] > Yahoo! Groups Links > > > > > > > To listen to the show archives go to link http://acbradio.org/handyman.html or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday The Pod Cast address for the Cooking In The Dark Show is. http://www.gcast.com/u/cookingindark/main.xml Visit The New Blind Handy Man Files Page To Review Contributions From Various List Members At The Following Address: http://www.jaws-users.com/handyman/ Visit the new archives page at the following address http://www.mail-archive.com/blindhandyman@yahoogroups.com/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/blindhandyman/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
