Jeff Layman wrote:
I have a 6-months old Fantasia ceiling fan (mains powered, with 6-speed
reversible dc motor) which is causing a lot of interference on MW. FM is
not affected. The interference is there on forward or reverse rotation,
worsens as the speed is increased,, and appears on portable as well as
mains-powered radios.

I can return it to the supplier for replacement or refund, but it is a
bit of a rigmarole to remove and refit. All the electronics are sealed
in, and the only accessible wiring is to the mains connector. Is there
any point in trying some sort of screening or RFI suppression on the
mains wiring before I take it down?


My furnace fan creates so much noise, I can't do much with it on. It's
variable speed, and has peak noise at max speed. I tried some filtering on
ac and thermostat, but it's a big problem.

Greg