Low Voltage Warning Light and Buzzer

[Bucket List II]

I have a pair of 2002 6CTA 8.3 M3 Diamond engines (non electronic). The low voltage warning light and buzzer is going off on the port engine and sure enough, the gauge on the dash panel shows only10 volts while at cruise. My problem is that the port alternator is actually putting out 14.5 volts at the alternator. Incidentally, both upper and lower helm stations show the same reading. Any help would be greatly appreciated.

Topic

[Rob Schepis]

Glad it worked out and thank you for posting the resolution – that adds much value to these troubleshooting posts.

1 user thanked author for this post.

Corey Schmidt

[Bucket List II]

Thank you ..!

Sure enough, I had a loose connection at the 10 10 amp circuit breaker. Cleaned it up, reconnected and now working fine.

1 user thanked author for this post.

Corey Schmidt

[Rob Schepis]

I’m on a phone, no access to a PC at the moment, so can’t post a link, but do a search in these forums for engine mounted circuit breaker me as author. You may have a loose connection.

1 user thanked author for this post.

Tony Athens

[Author]

Replies