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Old 11-10-2016, 08:41 PM   #1
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"Appliance" Breaker and Faulty (?) Sub-Woofer

Recently I heard an unusual and rather loud noise, coming from under the
kitchen sink. I first checked the breakers...when I flipped off the breaker labeled, "Appliance", the noise stopped. I determined the noise was coming from the sub-woofer, yet there were no entertainment devices on, including the TV! At present I have the sub-woofer unplugged and the "Appliance" breaker on. I should note that before unplugging the sub-woofer I discovered that with the "Appliance" breaker on there would be no noise for hours at a time. Then, out of nowhere, seemingly, the noise would return. Anyone have any idea what's going on? Why would the sub-woofer come on when NO entertainment devices are on? And, what is on the "Appliance" breaker other than the sub-woofer?
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Old 11-10-2016, 10:48 PM   #2
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I don't know but my subwoofer is a pos.
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Old 11-11-2016, 07:49 AM   #3
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The sub-woofer has a built in amplifier and these can sometimes emit a sound due to a transient electric spike from somewhere. If you have the volume set on max, that could make it more sensitive.
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Old 11-11-2016, 08:12 AM   #4
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Thanks, Algoma...I considered it strange this would have occurred a year after purchase. Can't imagine any changes that could have caused it. I know little about sub-woofers...when I discovered it under my sink I didn't know what it was, only that it was a Sony product. I definitely will look for the controls, to see where the settings are. I saw no controls on the side facing me. I'm wondering just what else is on the "Appliance" circuit??? Again, I appreciate your response.
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Old 11-11-2016, 08:32 AM   #5
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Mine is installed backwards so that the speaker is towards the wall and the wiring and controls face me when I open the door. I guess your installer thought differently.
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Old 11-11-2016, 08:37 AM   #6
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Algoma...have you experienced the noise I referred to...out of "nowhere"?
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Old 11-11-2016, 08:41 AM   #7
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Quote:
Originally Posted by hugh37 View Post
Algoma...have you experienced the noise I referred to...out of "nowhere"?
Can't say I have, but I have my volume turned down low so I may not have heard it.
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Old 11-11-2016, 08:50 AM   #8
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Had same thing out of our sound bar. Had to disconnect the wires and wrap the stripped ends before it would stop. As far as I know we don't have a sub-woofer.
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Old 11-11-2016, 08:52 AM   #9
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Had same thing out of our sound bar. Had to disconnect the wires and wrap the stripped ends before it would stop. As far as I know we don't have a sub-woofer.
Yes, a loose connection could cause that electrical transient. Always worth checking.
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Old 11-11-2016, 09:02 AM   #10
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Larry, when you get to the controls on the sub-woofer check that the power saver switch is turned on. This way the speaker will only be active when you have a sound source available.
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Old 11-11-2016, 12:01 PM   #11
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Thanks, John! I've just spent a half hour, pulling out the drawer, etc., to
access the unit. My controls were set at half volume...I saw the power
saver switch and the different positions, but can't remember where it was
set. I didn't change the setting, but will look at it again. I did find that
leaving the "Appliance" breaker off (with sub-woofer plugged in) leaves a
number of outlets without power...I didn't check all of them, however.
Appreciate your help.
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Old 11-12-2016, 04:43 AM   #12
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My sub-woofer started blowing fuses and is now in the dumpster. Normal TV watching is unaffected (since there is very little deep base anyway). I might notice it if listening/watching a DVD but it's not like the inside of an RV is designed like a theater.
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Old 11-12-2016, 07:49 AM   #13
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I understand, bruceisla...however, I think I'll hold off on the dumpster and
just leave it unplugged. Thanks. Larry
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Old 11-12-2016, 08:37 AM   #14
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I understand, bruceisla...however, I think I'll hold off on the dumpster and
just leave it unplugged. Thanks. Larry
Unplugged is also good. But, in my case, located under the sink and behind the flex-hose and weight for the sink faucet, it's better in the dumpster. It's keeping company with the dishwasher, old analog tuner TVs, switchboxes, Receiver, and non-HD dish.
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