"jim evans" wrote in message
...

I have three 20+ year old Casablanca fans. One makes a
knocking/thumping noise at the same point in each revolution - go
around, thump . . . around, thump . . . around, thump.

It's been doing this off and on for 5 years. Recently it has become
louder and persistent. The Casablanca Fan Company are a customer
unfriendly bunch. I call them to ask what causes this and how I can
fix it. They offer to locate a "certified" Casablanca repair service
near me.

[Off topic rant: The speed control circuit board in another failed.
This is two customer unfriendly outfits in a row. About a month ago I
called InSinkErator about my garbage disposer and got the same 'Get
lost. We're only interested if we can get more money out of you'
reply. Given the ridiculously high price and low reliability of their
fans combined with their customer non-support attitude, they've
guaranteed I'll never buy another Casablanca fan.]

A few years ago an acquaintance said it has something to do with the
flywheel needing to be repositioned, or something like that. Anybody
know how I can fix this?

jim
___
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This is Turtle

I have had ceiling fans in my house for 25 years and in that time 3 or 4 times
the fans would start making a thumping noise on each round and I would tighten
up all the screws of the blades and it would stop. Tighten up both sets of
screws as the ones holding the blade and the ones holding the blade holder to
the motor. A thumping noise in my case was loose blades everytime.

TURTLE