DC voltage off

Matt_Colie wrote:
O\Use a test light and not a meter.
Matt

AMEN to that.... I have both (Multiple test lights and multiple meters)

I have found problems quickly and easily with the test lamp which the meter said did not exist.

WHY

Imagine this following circuit

Battery----Wire---Bad spot with 1,000 ohms resistance------Meter

The meter is a 10,000 ohms per volt set on the 20 volt range so the input impedeance of the meter is 200,000 ohms

The voltage the meter sees is thus 13.6* 199,000/200,000 (Very nearly 13.6,in fact the difference is less than the error range of the meter)

With a test lamp.. The lamp can be 1-2 Ohms Now the voltage it sees is 13.6 * 2/1002 or a tiny fraction of a volt.. IT will not even glow

THIS happned to me.. Twice so far... In this rig Once was a bad connector, once a bad wire. (not counting battery connection issues)

I do some work at a thift store... Happened to the owner's wife Wed. (Battery connection) She has new cables now.

The test light shows NO LIGHT where the meter shows NORMAL.

One (just one of many) of the things that I think is un-smart of RVIA is that they didn't look at either USCG or boat builders guidelines. As a result, RVs have a great deal more electrical trouble than they should. In the time before the current depression, I did a great deal of boat work, but I also got roped (well, they did pay me) into tracking down electrical issues in RVs. Loose connections is a chronic issue. That is exactly what you are describing.

Use a test light and not a meter.
Check both sides of every switch and connection.
When you can't tell where a circuit runs, get a tracer. (A tracer is a gadget you put on the line and it uses a radio signal that an included receiver picks up.) It may not be cheap (the cheap ones still do work), but think of what it will cost to have someone like me find the problem.

There is no quick answer, it takes the doing to fix these.

Matt

Being the unit is a JAYCO you can contact them along with the VIN number and request a wiring diagram. That may help track down a possible bad junction point somewhere behind your walls that may lead to fixing your problem...

Most likely problem is a loose connection behind one of the fixtures
The last working fixture on the circuit is the place too start looking
Of course you might have two.lighting circuits, with one being totally out, in that case start at the non working fixture closest too the power center a k a 12v fuses