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Old 12-06-2022, 11:26 AM   #1
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Humming noise

We have an 2017 27 DSRL that has a humming noise coming frim he TV area. Iím hearing impaired but wife has good hearing and drives her crazy.

The hum is not constant but she says it sounds like electrical crickets. I turn fridge off and still was humming so not the fridge. Anyone else experience this?

Thanks in advance.
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Old 12-06-2022, 12:05 PM   #2
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Could it be the fan in the fuse box? If you have a lot of electrical items running it will kick on.
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Old 12-06-2022, 12:24 PM   #3
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Didnít know the fuse box had a fan. Iíll check it out.

Thanks
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Old 12-06-2022, 12:40 PM   #4
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Maybe something to do with the toilet???
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Old 12-06-2022, 12:41 PM   #5
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Or the fridge can make those noises too
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Old 12-06-2022, 01:21 PM   #6
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First off, sometimes annoying the wife is a good thing.

To help narrow it down I would suggest operating off battery only and seeing if the noise is present. If so, you are looking for something 12 volt related. If no sound then try plugging in.

Not sure what is in the TV area. Maybe it is the TV itself. Can always unplug it to test.
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Old 12-06-2022, 01:33 PM   #7
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Unplugged 120 and noise went away. Plugged back in and noise stopped for about an hour then came back. Comes and goes randomly. For instance the fan for the range was on, and as soon as I turned it off wife said it came back on.

The mystery continues.
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Old 12-06-2022, 03:09 PM   #8
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Quote:
Originally Posted by Sandybar View Post
Unplugged 120 and noise went away. Plugged back in and noise stopped for about an hour then came back. Comes and goes randomly. For instance the fan for the range was on, and as soon as I turned it off wife said it came back on.

The mystery continues.
As someone already stated, it sounds like your converter fan.
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Old 12-06-2022, 03:20 PM   #9
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Pretty sure I donít have a converter in my unit. Isnít that a unit that convert 12 volts to 120.
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Old 12-06-2022, 04:20 PM   #10
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Quote:
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Pretty sure I donít have a converter in my unit. Isnít that a unit that convert 12 volts to 120.
No, that's an inverter. The converter changes 120vac into 12vdc.
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Old 12-06-2022, 08:26 PM   #11
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Ok that makes sense. So what does the converter look like?
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Old 12-06-2022, 08:54 PM   #12
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Ok that makes sense. So what does the converter look like?
Behind the breaker panel, might look something like this
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Old 12-06-2022, 10:27 PM   #13
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Ok I’ll look off if and get u the update.
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Old 12-07-2022, 10:54 AM   #14
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Would the converter go bad prematurely if a person like me keeping the trailer plugged in 24/7? My thought is to keep batteries charge and in good shape. Newbie to the rv world and learning much from this forum.

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Old 12-07-2022, 12:19 PM   #15
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I asked the same question quite awhile ago. Folks a lot sharper than me said no problem. I have had it plug in 24-7 ( when we’re home ) and haven’t had any issues. I’m still using the original battery ( 4 years old ). Make sure you keep an eye on the battery water level and use distilled water only.
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