Sub Panel Buzzing/shorting Noise - Electrical - DIY Chatroom Home Improvement Forum

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Old 06-05-2013, 10:23 PM   #1
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Sub panel Buzzing/shorting noise

I have this outdoor sub panel that has a GFCI outlet, an HPS dusk-dawn light and two outdoor lights on a switch connected to it. I was grilling some food the other night and turned on the outdoor lights and I heard a buzzing/melting/metal fusing sound in the panel so I turned it off right away. Turned off the breaker, now when I turn the breaker back on, even with outdoor light switch turned off, i hear the same noise. this is a new thing, it has worked fine for a couple of years. whats going on? Below are photos of the box when I took the cover off, and the outdoor light switch.


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Old 06-06-2013, 12:56 AM   #2
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Looks like water caused rust and corrosion. Get a new box and breakers and land the grounds on a seperate ground bar and the neutrals also on their isolated neutral bar.Might need a ground rod,also.


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Old 06-06-2013, 12:32 PM   #3
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That is one messed-up-looking installation!

1st, where are the bare, and Green insulated ground wires terminated, if at all? I hope that one of them is not going to that breaker. (Is that supposed to be a GFCI Breaker?)

Where does that Red wire terminate?

The neutral termination lugs need to be reworked; the screws are all rusty. I would back the screws out, re-strip the White wires, and re-terminate them, tight.
Installation is the Reverse of Removal.
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Old 06-06-2013, 02:21 PM   #4
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the red is terminated to the right of the tandem is a hot in.
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Old 06-06-2013, 03:50 PM   #5
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Water damage. Replace the panel.
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Old 06-06-2013, 09:30 PM   #6
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Make sure you replace it with one rated for outdoor use.


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