Cinder296 wrote:
My motor home is not charging the batteries for some reason.
I have heart interface source manager 20.
It looks like your converter/charger has failed.
The voltage should be the same at the converter as it is directly at the battery......but checking both places is a good thing to do.
The fact that the fan worked indicates that the converter is getting power IN (110-120 VAC) and if you measure less than 12 V on the output, then it is not working right.
The fan probably has a thermostat and only runs when the converter is HOT.
Just to be sure, you need to charge your batteries, disconnect the charger, measure the voltage and then leave them disconnected for 12 hours or so and then measure the voltage again. They should stabilize around 12.6-12.8, maybe even a bit higher.
What does that second sentence quoted above mean ?
P.S. If this problem has been going on very long, that is your batteries have been down aroung 10 volts 3 times or more OR they have been sitting like that for more than 24 hours (and they are not "deep cycle" type) you might be about due for new batteries too. But the converter needs to be fixed first.
