Scamp Outside Door Light Not Working - Fiberglass RV



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Old 07-12-2019, 08:32 PM   #1
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Scamp Outside Door Light Not Working

I installed LEDs for the interior & outside door lights for our 1993 13 Scamp. They all work except the outdoor light. Any ideas? Thanks
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Old 07-13-2019, 08:12 AM   #2
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voltmeter
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Old 07-13-2019, 08:35 AM   #3
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To expand a bit, use a volt meter to check the polarity of the outdoor socket. It may be reversed, in which case an incandescent lamp still works, but an LED won't.
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Old 07-13-2019, 09:38 AM   #4
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To expand a bit, use a volt meter to check the polarity of the outdoor socket. ..
To expand even more.. my thought was first do the most basic check.. do you even have power at the lamp socket? Use your voltmeter. I gather that you did at one time but with old fixtures the very act of changing out a bulb can cause a break in a connection.

Some LED bulbs will work with reverse polarity but that might be the higher end ones. (The actual diode inside the bulb still requires correct polarity) So if the bulb has a wedge type base that makes it reversible, then reverse it. Same if its a barrel type base with both contacts on the bottom - try rotating it 180 degrees If its a barrel type base with a single center conductor as it is on my outside light by the door, then check for negative on the outside of the socket and positive on the center conductor. If its reversed then go back to the incandescent, or to use the LED, reverse the wires in the fixture.

But first check and see if you do in fact have power at all.
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Old 07-13-2019, 03:20 PM   #5
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When I first got my Scamp, I also replaced the bulb w/ an LED, but got no light when turned on. I removed the bulb, used a toothbrush and some electrical contact cleaner & gave the socket, etc a good cleaning. Reinstalled the bulb; worked fine...Age and the weather just caused enough corrosion to prevent good electrical connections in the bulb/socket apparatus.
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Old 07-13-2019, 03:51 PM   #6
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Age and the weather just caused enough corrosion to prevent good electrical connections in the bulb/socket apparatus.

Or, you put it back in, turned 180 degrees.
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Old 07-13-2019, 04:43 PM   #7
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Or, you put it back in, turned 180 degrees.
I'll bet it was the corrosion. Many times, mostly at homes, I have removed bulbs that had been in place for years and exposed to the weather. There was still an electrical connection under the corrosion, but once you broke that, the corrosion would prevent a good connection with a new clean bulb. A good cleaning or replacement of the socket / fixture is the fix in those cases. So back to the OP's issue.. what condition is that socket in? If its the original 1993 fixture then I am surprised it worked at all.
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Old 07-13-2019, 06:07 PM   #8
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The price of complete LED fixtures has gotten so low it just makes sense IMHO to replace the entire device.
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Old 07-13-2019, 06:12 PM   #9
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Inexpensive LEDs sometimes are polarity sensitive. Test the bulb in another socket to insure it works and if it does, clean the outside socket and check the polarity to insure it is the same as the working sockets.

The more expensive ones usually have circuitry inside to make them work.

When installing bulbs in an outside environment it is best to apply Dielectric Grease to the bulb connections and socket to keep the moisture out. Clean all contacts inside the socket and on the bulb first. Check auto parts stores for the grease.
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