Posted on by

Cummins N14 STC, Celect, Celect Plus – Service Manual Alternator Overcharging

Symptom Tree  t014

This is symptom tree
Cause Correction

Voltage regulator is malfunctioning

Check the voltage regulator. Replace the voltage regulator, if necessary. Refer to the OEM service manual.
 

Battery cell is damaged (open circuit)

Check the condition of the batteries. Replace the batteries, if necessary. Refer to the OEM service manual.
 
Last Modified:  22-Dec-2011
Avatar photo

Published by Jack

Hello, I'm Jack, a diesel engine fan and a blogger. I write about how to fix and improve diesel engines, from cars to trucks to generators. I also review the newest models and innovations in the diesel market. If you are interested in learning more about diesel engines, check out my blog and leave your feedback.