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Old 10-23-2014, 11:59 PM   #1
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Coach interior lights

I have 3 lights not working anyway of testing them with mutimeter and what settings do I set meter on if pluged in to 120 or battery, I also have 2 porch lights out-swich is good and step light works. thanks

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Old 10-24-2014, 03:03 AM   #2
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Good luck with a suitable solution.

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Old 10-24-2014, 04:11 AM   #3
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lights out

Yes you can check these lights with a multimeter on the dc scale as these are 12 volt dc lights.Remove the plastic covers and take the bulb out make sure the fixture is turned on and take the red probe touch it to the inside element of socket and the black probe to outside of socket and you should read 12 volts.If you do not you can take the fixture down from ceiling by removing screws and pull the wiring out of the ceiling to where it is usually wire nutted to the fixture pull the the wires loose there and check to make sure you have power going to the fixture.If no power there I would check fuses for the 12 volt side of coach.
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Old 10-24-2014, 06:00 AM   #4
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Did you check the bulbs first? I would do that. Multi-meter set on OHMS. One lead on center terminal of bulb and other lead touching outside of the bulb . no resistance, bad bulb.
2003 Newmar Kountry Star 3905, Freightliner XC chassis with CAT 330. Winnie the black lab, pretty Airbus captain wife, retired airline pilot with 11 grandkids. UH-1 pilot (Huey) U.S. Army 1967-1983. RVN 68-69. Northern Idaho my summer home.
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Old 10-24-2014, 09:44 AM   #5
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Multi-meter will work.

I usually switch out a known good bulb with the non-working bulb to make the same test.
1995 CC Magna #5280
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