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Thread Number: 64583
/ Tag: Modern Automatic Washers
super high pitched noise from new washer |
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Post# 872829 , Reply# 5 3/16/2016 at 07:10 (2,955 days old) by combo52  (50 Year Repair Tech Beltsville,Md) |
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Adding Insulation To A Newer Washer Can be a great idea and you really don't have to worry about blocking ventilation for motor cooling, the motors are so efficient that they barely get warm, but otherwise I would not worry about the sound the washer is making.
If they come out and start replacing parts the machine may suffer other problems because of the disassembly and reassembly from changing parts.
If the noise really brothers you try to have the machine exchanged for a better brand. | ||
| Post# 875785 , Reply# 7 4/6/2016 at 07:06 (2,934 days old) by arbilab (Ft Worth TX (Ridglea)) | ||
A datapoint
This building's Otis elevator makes the same whine at the 'door close' speed. The sound is not evident when the door first starts closing (accel) or when nearly closed (decel) or when opening (highest speed).
It never occurred to the tone-deaf engineers designing/testing the motor drive or they might have been able to mute it. Or they might have asked their boss "what should we do about that whine?" and the boss said "ship it" cuz HIS boss told him the development budget was bottoming out. Kinda might as well learn to like it; it's the 'sound of efficiency' and you'll be hearing more of it. Daughter is not likely to buy that, not right away. She will grow out of that sensitivity. Meanwhile, she might be more tolerant if she knew what it was and why. It turns the power on and off to save power, and the speed it does that happens to correspond to a musical note that you hear. That's worth a try. Trying to 'shop it away' might be arduous. The amount of acoustic energy she's reacting to is definitely not harmful in the context of 'modern life'. | ||
| Post# 875808 , Reply# 9 4/6/2016 at 11:33 (2,934 days old) by brucelucenta () | ||
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Am I the only one who thinks top load HE washers are pieces of shit? | ||
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Post# 894194 , Reply# 13 8/16/2016 at 16:09 (2,802 days old) by kb0nes (Burnsville, MN) |
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Well from what we are deducing from multiple users is that there is a high pitch sound that is at a high enough frequency that only younger folks can hear it. This would likely place the sound at 15Khz or higher. It is likely much like the whine that we used to hear from old CRT TV's that came from their flyback transformers at 15.7Khz.
Odds are it is coming from the variable frequency drive inverter electronics. It is fairly common to have the transformer coils 'sing' a little in the high magnetic field. I kind of doubt it comes from the motor as I doubt the fundamental frequency fed to the motor is anywhere near that high, but it could be a harmonic perhaps. If this is the source of the noise, it is no cause for concern, other then being annoying to people that can still hear it. It won't lead to failure etc. I'd wager that LG is aware of it and deems it to be "acceptable". If you have pets they may be more adversely effected by it. Both dogs and cats have hearing that is far more sensitive to high frequencies then humans. | ||
| Post# 894201 , Reply# 14 8/16/2016 at 16:44 (2,802 days old) by frontloaderfan (Merrimac valley, MA) | ||
"Am I the only one who thinks top load HE washers..." | ||
| Post# 894294 , Reply# 15 8/17/2016 at 07:06 (2,801 days old) by vacerator (Macomb, Michigan) | ||
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No Ryan, you're not, but the Samsung DD top loaders are better than the Whirlpool's. I could stand the high pitch hum so long as it works well. It's not on all day. My sister has one going on five years with no problems other than a dim display. She has three kids. | ||
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