2024-01 – Overloaded Electrical System May Cause Fire – 2020-2023 Braun Chief XL I, Express Plus I, Chief XL III, Liberty I, Super Chief I, Signature Series III, Signature Series I, & 2020-2024 Express III Emergency Vehicles

February 1, 2024 NHTSA CAMPAIGN NUMBER: 24V063000

Overloaded Electrical System May Cause Fire

Overloaded electrical circuits can overheat, increasing the risk of fire.

 

NHTSA Campaign Number: 24V063

Manufacturer Braun Ambulances

Components ELECTRICAL SYSTEM

Potential Number of Units Affected 628

 

Summary

Braun Ambulances (Braun) is recalling certain 2020-2023 Chief XL I, Express Plus I, Chief XL III, Liberty I, Super Chief I, Signature Series III, Signature Series I, and 2020-2024 Express III emergency vehicles equipped with Weldon 8X16 Input-Output nodes. In the event of a short circuit or wiring failure, the firmware in the node may fail to shut off the output pin, resulting in overloaded electrical circuits.

 

Remedy

Weldon will update the firmware, free of charge. Owner notification letters are expected to be mailed February 12, 2024. Owners may contact Akron Brass customer service at 1-800-228-1161 or Braun customer service at 1-800-488-0359. Braun’s number for this recall is 2024-01.

 

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 early October 2023, Weldon was notified that external wiring in a vehicle using the node had melted. The part was returned to Weldon for analysis in mid-October where it was found that when an external short circuit occurred, the electrical output did not shut down as specified. Weldon conducted testing and analysis of the version of the node used in the vehicle as well as prior versions of the node and it was found that for the version of the node installed in the vehicle, the electrical current sensing calibration was outside the specified limits. Weldon found that the calibration was previously updated in production, but was not considered to pose a broader concern at the time. On October 24, 2023, Weldon decided to conduct a safety recall to address the issue. Braun was informed of this recall via letter on January 15th, 2024. After review and investigation Braun is filing this corresponding recall on February 1st, 2024.

 


33 Affected Products

Vehicles

MAKEMODELYEAR
BRAUN AMBULANCESCHIEF XL TYPE I2020-2023
BRAUN AMBULANCESCHIEF XL TYPE III2020-2023
BRAUN AMBULANCESEXPRESS PLUS TYPE I2020-2023
BRAUN AMBULANCESEXPRESS TYPE III2020-2024
BRAUN AMBULANCESLIBERTY TYPE I2020-2023
BRAUN AMBULANCESSIGNATURE SERIES TYPE I2020-2023
BRAUN AMBULANCESSIGNATURE SERIES TYPE III2020-2023
BRAUN AMBULANCESSUPER CHIEF TYPE I2020-2023

 


3 Associated Documents

Recall Acknowledgement

RCAK-24V063-8496.pdf 708.738KB

 


Defect Notice 573 Report

RCLRPT-24V063-5498.PDF 221.456KB

 


Manufacturer Notices(to Dealers,etc)

RCMN-24V063-8554.pdf 235.855KB

 


Latest Recalls Documents

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

 


 

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