That is excellent! Thanks!
I have printed your post and highlighted it in my archives.
> Christopher E. Brown wrote:
>
> Every direct drive variable speed washer I have listened to is RF noisy.
> After noticing issues with my Kenmore I made it a point to bring the HT
> and "sample" as many as possible and friends/relative/etc places.
>
> Some had noisy control systems, all of the front loaders had noisy drive
> systems.
>
>
>
> Mine happens to have a nearly silent control system, onboard electronics
> can only be picked up with a sense antenna a couple feet from the panel.
>
>
> The drive system however, I could clearly hear drum start/run/reverse
> and spinn cycles, easy to tell what the washer was doing 160-10.
>
>
> Since every similar washer I checked was at least as bad, and mine only
> had motor controller noise I ordered a Corecom filter brick, 10amp, one
> of the higher end units noted for use on VFD (Variable Frequency Drive)
> systems.
>
> I installed inside the washer case where the power cord enters, almost
> silent (90+ percent gone). Note, the filter *only* works when the
> filter body has a very good connection to the washer chassis, leave it
> floating and it makes no impact on the noise. I ground the paint off of
> the inside of the chassis under the filter mounting tabs and used
> stainless hardware w/ no-ox grease to get a good connection, then
> removed that panel and cleaned up where the panel bonds to the base
> panel/frame (where motor controller and motor casings bolt to) to ensure
> a good connection.
>
>
> After that I could only hear it below 40 and it was weak, a 2.4in #31
> toroid on the power cable and I can no longer tell when it is running.
>
--
Thanks! & 73, doc, KD4E
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