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Hum by switch

When I turn on tanning bed there is a humming sound by switch

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1 Answer

Why does My tanning bed hum when i turn it on but no lights


The lights or a connection to them may be bad.

Jul 01, 2014 | Baby Gear

4 Answers

240 v should work right?


no, voltage is not the issue, what is the amperage you need. If you need more than you have, then you could have 2000 volts and it will not work. Also your taking AC to AC, or DC to DC. There's a big difference in what you need for each.
look up Ohms law for for the calculations needed for voltage vs amperage using one socket.
good luck

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Mixing board hum


AC hum comes from poor grounding of components.

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Surround sound doesnt work. When i switch the surround on there is a buzzing/ hum from the speakers. The sub has a hum in analog mode. I try to switch to theater, club, church etc. And still a hum was...


Back up, open the manual and set it up with test tones to verify the hardware before trying anything else. Then onboard FM. Then external sources (according to their manuals).

Hum/buzz solutions are common on the internet. Do some web searching for "audio system hum" to find somethign that matches your symptom.

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1 Answer

Re: Boston digital BA735. Hum with or without input signal.


Hmmm I just got the same problem. They worked fine on my old Dell desktop but when I plugged them in to my son's old Dell PC (maybe 1 year newer than my old one) they all hum like crazy - as you say even if it's just the power plugged in and nothing else. Yes it does have the original power supply. I get no music (but still it hums) from digital out/in but when I switch to analog out/in I hear the music and it still hums, plus the sound is distorted. Wierd.

Jul 14, 2010 | Boston Acoustics BA735 Computer Speakers

2 Answers

GE electric dryer not working


Hi,
It sounds like your motor is failing.You went to turn it on and it hummed... The motor got hot and triggered the safety shut off. When it cools you may be able to get it to hum again. But you will need to replace the motor.
Let me know if I can help you further.

Apr 15, 2010 | GE DWSR405EBWW Electric Dryer

1 Answer

Sub has started humming with amp turned off. just turned on at wall switch.nothing running


If the hum is from the back of the unit around the amplifier, it may be the transformer. It could be that the mounting is loose.
It could also be that the transformer is going out.

Disconnect all the inputs to the unit, Still hum?

If the hum stops you have something causing noise to the input.

If you have it on a switched circuit, try moving the power plug to a different outlet that is not on a switch. If hum stops, then you have something on that circuit causing the problem

if all inputs are disconnected and it still humms good chance it is the transformer.

Nov 12, 2009 | Velodyne CHT-8 Subwoofer

1 Answer

When i turn the on switch i hear a humming as if it is going to start but it does not. my dryer brand is Frigidaire FEQ 332 E s


Depending on the hum you hear (if you hear the sound and it keeps humming) the belt that connects the motor and the drum is probably broken.

If the hum only happens when you turn the on switch, the motor has probably failed.

Aug 31, 2009 | Frigidaire GLEQ642A Electric Dryer

2 Answers

Newly installed Leviton dimmer switch humming at the switch


Unfortunately, the hum is normal for operation of that type of dimmer at low levels.  Sometimes the lamp filaments will also "sing" a high pitched sound.

Mar 17, 2009 | Lutron #D-600PH-DK 600W SP Push Rotating...

1 Answer

How do i fix the humming noise from my mixer to my computer?


Hi Joe, you probably need something to remove the ground hum, like this http://www.maplin.co.uk/Module.aspx?ModuleNo=33172
hope this helps

Mar 15, 2009 | Mackie Tapco Link.MIDI 4x4 (663961007992)

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