Dimming lights

Question

I have a Pilgrim River Open Road 5th wheel. I've had an intermittent electrical problem with the lights in the bath and bedroom area. When multiple lights are turned on, the lights all dim very low. None of the other 12v lights in the rig do this. I tried disconnecting the battery. Nope. Thought it might be the switch. Nope. I'm scratching my head on this one.

mexicowanderer · Answer

Stop scratching. Bad engineering or assembly construction quality.

It's a BAD ELECTRICAL CONNECTION SOMEWHERE in that particular feeder circuit

The bad connection could be either in the positive or negative side.

A cheater's fix is to rip out the incandescent bulbs by their roots and replace them with plug-in LED bulbs. This will greatly reduce the amperage load and hide the problem perhaps forever.

Not just a single wire feeds power to all the lights. From the fuses, power branches out like limbs on a tree. Problem is, all the branches and connections are hidden.

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