No 12v input from battery, 2004 Terry Trailer

Old-Biscuit wrote:

Boon Docker wrote:

BEagen wrote:
2oldman: The two 6v were in series, but one was inadvertently reversed. I assume that created a reverse polarity situation. Sorry, I don't know how to post a diagram.
carringb: Wiring diagram shows a 40 amp fuse between the battery and converter but I can't find it. Believe me, I have looked and looked...
Old-Biscuit: I agree. But, cant find anything like that. No 30 amp fuses on the DC Dist Fuse Panel; just 15s and 20s.
I need to find the in-line fuse/breaker somehow. Thanks for all your comments and insights.

Follow the battery cable (likely the negative) from the battery to where it goes under the trailer look for small (approx 1" x 1.5") circuit breaker (box). Should be 2-3 ft from the battery, it may or may not have a reset button.

Except -----
Fuse will be on POS cable
On the a-frame and will be a small 2 stud box...reset is typically on side of the DC Circuit Breaker

Example: DC Circuit Breaker


Example: Reverse Polarity fuses on DC Dist Fuse Panel----40A

One should note that the breaker shown in photo IS a "self reseting" or "auto reseting" breaker (IE no reset button to push) and is typical breaker used by RV manufacturers.

HOWEVER, in order to get this breaker to auto reset, one MUST REMOVE BOTH POWER SOURCES (IE converter must be powered down AND the battery source must be disconnected from the circuit). Once all power has been removed from the circuit then and only then will the breaker reset.

Do that first before throwing parts at this.