Have RV Questions? Ask an RV Mechanic Online.
Hi! My name is ***** ***** I can assist you with this. I may need some additional information from you first in order to give a complete answer.
if your batteries are anywhere near 3 years old I would have them load tested to be sure they are viable. Failing batteries and dirty cable connections account for the majority of the causes we see of this problem. Most places will load test them for you. Just be sure you mark the cables well or take some photos so you get them back in again correctly. Easy to get this wrong if you don't. Another trouble spit is the master disconnect switch. The contacts may be burned and not allowing the current to transfer properly. A good DC volts reading doesn't really mean much as it is the amperage that counts here! Hope that gives you somewhere to start. Please get back to me if we need to dig deeper into this as all follow ups are included in our fee.