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Service bulletin TSB1900090121201

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10154248
Published by NHTSA2019-03-11
Manufacturer's numberTSB1900090121201
Manufacturer's date2019-01-21
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution a generator set shutting down on fault code 27 - Votage Sense Lost. This is caused by interference between the generator brush block and block, possibly resulting in improper contact between the rush and the slip rings.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
CUMMINS CUMMINS

Listing a model year does not mean every vehicle of it is concerned: the document says which.