Alternator not charging Batteries
Hey guys well figured out the voltage problem on the RV now I'm having a problem with alternator not charging the batteries. 96 Southwind with 7.5 E350 engine. So Batteries are showing 12.3 V when...
Forum Discussion
Assuming you're talking about the house batteries...yes, that's the isolator solenoid (or combiner if you prefer), and yes the coil is 12V.
Note that, despite similar appearances, this is not a starter solenoid, but rather one rated for continuous operation. If it is faulty and you need to get a replacement, make sure it's similarly rated for continuous operation. Commonly it would be controlled primarily by the "run" circuit of the chassis, so it's active whenever the key is in the run position, similar to power for the vent fan or many other accessories. If you have an emergency start button or switch, there's a good chance it also activates this solenoid when pressed.
The engine computer is not involved at all in enabling the charging of the house batteries.
Note that, despite similar appearances, this is not a starter solenoid, but rather one rated for continuous operation. If it is faulty and you need to get a replacement, make sure it's similarly rated for continuous operation. Commonly it would be controlled primarily by the "run" circuit of the chassis, so it's active whenever the key is in the run position, similar to power for the vent fan or many other accessories. If you have an emergency start button or switch, there's a good chance it also activates this solenoid when pressed.
The engine computer is not involved at all in enabling the charging of the house batteries.
