24E012 – Diesel Oxidation Catalyst May Overheat – Carrier PowerLINE RG15 & UG15 Series 24 CARB-Compliant Generator Sets

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February 9, 2024 NHTSA CAMPAIGN NUMBER: 24E012000

Diesel Oxidation Catalyst May Overheat

An overheated DOC can melt the shell, cover, and surrounding parts, increasing the risk of a fire.

 

NHTSA Campaign Number: 24E012

Manufacturer Carrier Corporation

Components EQUIPMENT

Potential Number of Units Affected 1,945

 

Summary

Carrier Corporation (Carrier) is recalling PowerLINE RG15 and UG15 series 24 CARB-compliant generator sets (Models 69RG15-120W-24, 69UG15-050S-24, 69UG15-068S-24, and 69UG15-080S-24). The Diesel Oxidation Catalyst (DOC) may overheat.

 

Remedy

The remedy is currently under development. The manufacturer has not yet provided a schedule for recall notification. Owners may contact Carrier Corporation customer service at 1-800-448-1661.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 


Chronology :

In mid-January 2024, Carrier was made aware of two reports of RG genset units, belonging to the same customer, that had failed from thermal events believed to originate in the Diesel Oxidation Catalyst (DOC) located in the Kubota engine for each unit. In the first report the thermal event led to melting of the DOC’s shell, and damage to the surrounding genset frame/cover, battery charger and wire harnesses resulting in the shutdown of the genset. In the second report, where the damage was less severe, the genset unit continued to operate until it was manually turned off on arrival.

In both cases, there was no fire that spread beyond this immediate area, nor were flames ever observed. No damage was reported to any other parts of the container or vehicle, and no personal injuries were reported for either event.

Carrier quickly commenced an internal investigation, and began working with Kubota, to determine the cause of the thermal events through field and lab testing. On February 4, 2024, Carrier was advised of a third report involving a UG genset unit that belonged to a different customer. In this event, the DOC in the Kubota engine was reported to be glowing red at the mounting straps of the DOC, but did not melt through the DOC shell or cause other damage.

Following this third event, Carrier moved quickly to suggest to its customers with these models to ground all units in their possession as soon as possible. Meanwhile, Carrier continues to work with Kubota to test the three subject engines to determine both root cause and potential remedies.

After internal meetings of all safety stakeholders following the third event, Carrier determined that a reportable issue existed in the subject genset units on February 6. Carrier now files this 573 report on February 9.

 


2 Affected Products

Equipments

BRAND PART NO. PRODUCTION DATES
CARRIER TRANSICOLD RG GENSET
CARRIER TRANSICOLD UG GENSET

 


4 Associated Documents

Defect Notice 573 Report

RCLRPT-24E012-3382.PDF 214.927KB

 


Recall Acknowledgement

RCAK-24E012-4562.pdf 967.316KB

 


Recall 573 Report – 02/27/2024

RCLRPT-24E012-4474.PDF 217.918KB

 


Recall 573 Report – 02/26/2024

RCLRPT-24E012-8633.PDF 217.918KB

 


Latest Recalls Documents

For the Latest and Most recent Recall Information Visit the link below…

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=24E012&docType=RCL

 


 

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Last update on 2024-04-11 / Affiliate links / Images from Amazon Product Advertising API

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