![]() ![]() I also checked the two 30 amp fuses in the converter and they were good. It is model WF8845 input1 105-130vac, 60hz, 780 watts includes charging and load, power converter 70 vf. It turns out it is WFCO 45 amp power converter. we camped in a campground that warned of brown outs and the umbilical came loose from the truck once while pulling that could have done this but i would not think either really would have caused a fuse to blow. On your recommendation I went out to check if it is a converter or invertor. i guess i was wondering if everyone had this "chicken scratch" on such important labels and if anyone else had this fuse blow for no reason too. it is interesting that removing this fuse will essentially isolate the battery from the converter (winterizing). But if you cant find a manual you wont know what to do with it. Apparently what youre looking at is the REMOTE CHARGE MANAGMENT SYSTEM (RCMS PORT). wfco (the manufacturer of the unit) did not offer much on their site either. The Charge Wizard wont work with a WFCO converter. its the sole 20amp fuse just above the 40 amp which is not blown. i am assuming it is the output from the battery charge component of the converter. i can not find a suitable wiring diagram to tell me what this fuse is for and whoever marked it at the factory, well their penmanship could not be deciphered. (the one right above the reverse polarity fuse). that put me into troubleshooting mode (what i do for a living) and soon found that the battery was fully charged and i had a blown fuse on the converter. we stayed the night with shore power attached then i checked again and still no battery power. No increase in voltage means the unit has failed, if the breaker for 120v AC. although we had been out for a week just a week ago, i thought that the battery must be completely dead. If you see only 13.2 volts the converter portion works but not the charger portion. I was getting ready to go to camp driveway Saturday night when i realized i had no battery power. ![]()
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