Forum Discussion
harley-dave
Mar 01, 2016Explorer
MEXICOWANDERER wrote:
Something is "King-Size" screwball here.
Rectifiers can fail OPEN CIRCUIT. No electronic connection. Just like taking a wire off. No power.
Rectifiers can fail SHORTED. No voltage drop. Just like hooking up a jumper wire bypassing the rectifier.
If the house rectifier shorts, the alternator could care less it's gonna continue to send voltage that's one volt too high to the center stud of the isolator. The chassis gets "corrected" voltage.
The other rectifier however is no longer a rectifier. Alternator voltage is sent directly to the house batteries. And guess what? It's one volt too high.
At this point if it fails 'shorted' your main concern should be the alternator is sending AC power to the battery/circuit, not DC anymore. It will go bad very fast in this scenario.
Dave
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