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Hums when i turn it up - Alpine Type-R SWR-1242D Car Subwoofer

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Most likely a ground issue. check them and your rca cables.

Posted on Sep 23, 2009

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My 2001 chevy malibu had been working fine up until this afternoon it turns but wont start,itmakes ahumming noise even when i turnoff key.


That humming noise may be your fuel pump burning out. Try turning the key to the on position while someone else listens near the gas tank. The humming should only hum for a few seconds so you won't have time to listen yourself unless you can hear it from inside. If the hum continues and doesnt shut off, it is likely a bad fuel pump. It is normal to hear a small hum for a couple of seconds , but when it starts getting weak, it will hum louder, longer, or not at all

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What could be the problem with the goodman a/c if you turn it on and you hear a hummin but the fan dont turn on


capacitor? will hum if contactor pulled in but no ac power. will hum if contactor pulled in and bad capacitor. depends on how lowd the hum is. loud hum prolly equals bad capacitor

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Humming noise when i turn the key on in the morning


power steering pump make humming noise and alternator with bad shaft bearing make noise.

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Jacuzzi 1hp hums won't turn on


If your motor is turned on and just hums then it is bad and will need to be replaced.

Rod
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1 Answer

Pump hums


hums as in it did not turn on and pump water or hums like it should be running great?

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When i turn on the power for my speakers it hums like crazy


do they hum when you unplug the audio jack from the PC?
If they stop humming when disconnected the problem will be down to a bad earth connection on the motherboard, or a failing power supply (rectifier circuit)
Humming is normally a result of voltage potential and the 50hz frequency in the mains.

Hope this helps

Apr 22, 2012 | Altec Lansing VS2621 Speakers

1 Answer

Dishrag caught un disposal, pulled it out, blades turn, it just hums, it hums even when switch is turned on off!!


If cutter disk turns freely and motor hums, then motor winding has gone bad.
The humming sound means motor is overheating and will stop humming.

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When turning up the volume speakers start to humn. Tried on all inputs still humming. Sound comes out but humming is there. Humming only stop when turning the volume all the way down.


You need to add a "ground lift" to the power cord to your system. What you're hearing is a 60 cycle hum (electricity) from house power.

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Hums when turned on-won't turn over


belt may have broke. if you are hearing a humming sound . thats the motor .whitch is good, sounds like the belt broke or slipped off.

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1 Answer

Air Handler Blower Unit Humming


More then likely it's the transformer. It may be getting weak. I've seen them hum/vibrate almost new and last for years. It's more an annoyance than anything.

Jan 18, 2009 | Heating & Cooling

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