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
The relay in the photo may not be a starter relay. That could be the charge relay. 14 volts shows alternator voltage and the 12 volts is showing coach battery voltage.
I would clean up the mounting bolts for relay as that is where it gets the ground to operate.
Disconnect the small wire, use an Ohm meter to check for continuity to ground through the coil.
Check for 12 volts DC on small wire when engine is running or when the auxiliary start button is pushed.
Yes, you can apply 12 volts DC to small post to insure the relay works.
I would clean up the mounting bolts for relay as that is where it gets the ground to operate.
Disconnect the small wire, use an Ohm meter to check for continuity to ground through the coil.
Check for 12 volts DC on small wire when engine is running or when the auxiliary start button is pushed.
Yes, you can apply 12 volts DC to small post to insure the relay works.
