ONAN ID

Well been using the 93 520 h and i notice its not charging the battery ,so i think it may need a voltage regulator...simple enough.......wrong cant make out anything on the id on the engine....so what should i do in that case?

Charging goes through the very problematic fuse block. Check the fuse and block first, then the 9 pin Molex connector between the battery and rear of engine next. That's where 90% of charging problems go back to.

Geno wrote: Charging goes through the very problematic fuse block. Check the fuse and block first, then the 9 pin Molex connector between the battery and rear of engine next. That's where 90% of charging problems go back to.

ok will check that and at the Molex on the outside of it somebody spliced the red wire to a white wire.....

nappypappy wrote:

Geno wrote: Charging goes through the very problematic fuse block. Check the fuse and block first, then the 9 pin Molex connector between the battery and rear of engine next. That's where 90% of charging problems go back to.

ok will check that and at the Molex on the outside of it somebody spliced the red wire to a white wire.....

Did look at the Molex and can tell why the wire is out side of it ...looks like there was a short since its got a little black in there.......so the splice makes sense or at least to me for now............

They get hot at the connection over time, the connector doesn't handle the amperage going through it and when the connection gets bad they heat up and cause what you're seeing. There are 2 connections that are most problematic at that connector, I can't remember the other wire colors though...