Forum Discussion

tev123's avatar
tev123
Explorer
Oct 14, 2015

100 amp alternator through battery isolator issues

Hello. Bought a 1990 class B a few weeks ago and as you could imagine first order of business was to dismantle all the systems and learn how everything is hooked up and how it works (first rv for m...
westend's avatar
westend
Explorer
Oct 14, 2015
It sounds like you have eliminated the circuit protection by bypassing the circuit breaker and have the isolator miswired/failed. This, along with a coach battery that is depleted, would be the cause of the heat.

Yes, isolators do go bad. There is also good probability that you will never get 50A from the alternator to the coach battery through a diode isolator when everything is wired correctly.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,187 PostsLatest Activity: Jan 14, 2025