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Old 02-10-2012, 06:15 PM   #11
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Marine 12-V lamps have two nipples. The "shell" is isolated from the filament, and the connection to the filament is thru the two nipples.

If one of these is replaced with an automotive, dual filament lamp, it will cause exactly this problem.

Perhaps they installed marine lamps in this Palomino?

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Old 02-12-2012, 09:59 PM   #12
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my first thought was ground but if all was working properly and the bulbs just burnt out, i would say u used the wrong type replacement bulb. try removing a bulb from one of the other lamps and installing it in socket that had the burnt out one and see if the problem goes away.
if u had a short, i would suspect a fuse to blow.

when u swap bulbs around, leave the socket empty that u pull the bulb from. if all works, then make note of the number on the bulb and replace with that type.

the bulbs can be bought at an automotive store but the ones used in RVs have a different number and run cooler. the automotive light will work but if u have close fitting plastic covers over the lights, they will melt them.

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Old 02-13-2012, 07:06 AM   #13
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1157 bulb vs. 1156 bulb
1157 should have offset pins for dual elements (turn signal and running light)
1156 should only have one element with even pins

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Old 02-13-2012, 07:21 AM   #14
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Originally Posted by richludden View Post
1157 bulb vs. 1156 bulb
1157 should have offset pins for dual elements (turn signal and running light)
1156 should only have one element with even pins
bulbs in all the light fixtures in my older rv were #1141. single contact,12vt.

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