I did it again....

GordonThree wrote:

This could be another joke thread

I doubt. His recent thread was about handheld SOC meter.
They go away when it gets complicated - and it did.

GordonThree wrote:
This could be another joke thread, seeing lots of them lately.

Like the guy who added a 3rd 6v battery. Spoof threads are not usually started by Seniors.

2oldman wrote:
My question stands...

I think we scared the OP away. This could be another joke thread, seeing lots of them lately.

My question stands...

Not an electronics person in any way. I've heard of "AC Ripple" with CB Power Supplies. You could set your DVOM on an AC setting, put it across a 12 Volt DC circuit, and see traces of AC Voltage. That may be the possibility mentioned above.

Remember, it's my belief that If GOD wanted me working on Electrons He would have made them Big Enough to See.

In the simpler electric (vs electronic) world I function a little better in, I have a nagging worry that the GROUND circuit has a high resistance (loose or corroded) somewhere. Yes, the Exterior 12 VDC Marker Lights, Turn/Stop/Tail get the HOT side from the tow vehicle and House Circuit (like Inverter) from the House Battery. BUT they share the ground side.

dtappy3353 wrote:
batteries are full and marker lights LEDs.

Subject line means DIY projects always with issues...wish I knew more but am trying.

Are you sure all the lights are LEDS? Do the tail lights flicker as well?

Is this on your Jayco TT? If so the exterior marker lights should be on a total separate circuit powered by tow vehicle. There is probably common ground through the trailer frame. Since the marker lights are led, it would only take a very small amount of stray current.
I would start by checking (cleaning, tightening etc) all ground connections. Then go the positive side of the 12v system, starting with the inverter supply wires.
I'm not sure it's possible for the problem to be on the output side of the inverter, putting stray 120 into the RV causing the 'hot skin' effect.

Ken

You have any 120v wire bundled with the marker lights 12v wire?
Are the lights bright like normal or dim?
If you ground the running lights positive wire do they go out?
Have you measured voltage on the 7-pin terminal for running lights?
Is the inverter chassis grounded to the frame?
Is the inverter output ground grounded to the frame?

Just a couple random thoughts.

2oldman wrote:
We are talking about an INVERTER, right, not a CONverter?

Eco-Worthy

Looks like an Chinese eBay inverter... 1500 watts pure sine for only $200?

Open it up and I bet all the caps on the input stage are underrated and have split open. That'd certainly cause lights to flicker.

Why the marker lights come on when the inverter is on, that's a better mystery.

We are talking about an INVERTER, right, not a CONverter?