Weird electrical problem
So I just fixed a very weird electrical problem on my daughter's family trailer. The only symptom I was originally given was the refrigerator does not work when switched to electric and there is no shore power.
Well, just as I was about to get started with my diagnostics, her husband said, "None of the lights work either !". Big clue, no power from the battery !!
So we checked the battery and it was good. No power to the 2 or 3 fuses we checked. Check the B+ wire in a couple of places underneath, GOOD ! So back to the converted/fuse panel. No obvious B+ without taking the whole fuse panel out. I studied the diagram on the cover and noticed that there was 40A fuse labeled "reverse battery protection". I pulled it out to get a good look and test with the meter. GOOD ! Plugged it back in and THE LIGHTS CAME ON !!!
Well, just as I was about to get started with my diagnostics, her husband said, "None of the lights work either !". Big clue, no power from the battery !!
So we checked the battery and it was good. No power to the 2 or 3 fuses we checked. Check the B+ wire in a couple of places underneath, GOOD ! So back to the converted/fuse panel. No obvious B+ without taking the whole fuse panel out. I studied the diagram on the cover and noticed that there was 40A fuse labeled "reverse battery protection". I pulled it out to get a good look and test with the meter. GOOD ! Plugged it back in and THE LIGHTS CAME ON !!!
