Help! 12v issues
Ok my interior lights were looking dim all the sudden while working in camper. It is plugged up to power. Converter has 2 30 amp fuses both were burned. I replaced them now no 12v will work, no lights...
Forum Discussion
The easiest way I have found to check for mounted in REVERSE POLARITY is to find the word "NEG" or the symbol "-" stamped on the 12VDC battery case. Make sure the battery cable connected to this terminal goes directly to a FRAME GROUND CONNECTION which should be very close to the battery installation. Grab the cable and hand trace it to be sure it goes to the frame ground connection.
If this has happened it will blow those two REVERSE POLARITY FUSES you found blown already and it will also blow an IN-LINE fuse in the positive battery leads very close to the battery installation. You have to correct this problem before replacing any of those fuses otherwise it will just blow them again. Hopefully those blown fuses has protected the CONVERTER.
Once you get it corrected be sure to make those battery termials with red paint or something to identify which is POSITIVE etc... You can TYPE up the word POSITIVE on a piece of paper and wrap around the cable then use clear tape to hold it all in place at the end of the battery cable. That works pretty good...
I always use RED FINGERNAIL POLISH on the cable side of the ring terminals for all of my POSITIVE battery cables.
Roy Ken
If this has happened it will blow those two REVERSE POLARITY FUSES you found blown already and it will also blow an IN-LINE fuse in the positive battery leads very close to the battery installation. You have to correct this problem before replacing any of those fuses otherwise it will just blow them again. Hopefully those blown fuses has protected the CONVERTER.
Once you get it corrected be sure to make those battery termials with red paint or something to identify which is POSITIVE etc... You can TYPE up the word POSITIVE on a piece of paper and wrap around the cable then use clear tape to hold it all in place at the end of the battery cable. That works pretty good...
I always use RED FINGERNAIL POLISH on the cable side of the ring terminals for all of my POSITIVE battery cables.
Roy Ken
