Tankless water heater recalled due to carbon monoxide risk.

Navien Recalls Tankless Water Heaters and Boilers Due to Risk of Carbon Monoxide Poisoning



Name of product:

Navien condensing tankless water heaters and combination boilers


A kit installed on the tankless water heaters and boilers to convert them from natural gas to propane can cause the unit to produce excessive amounts of carbon monoxide, posing a risk of carbon monoxide poisoning to consumers.

Remedy: Replace

Recall date: December 20, 2018

Units: About 3,400


Consumer Contact:

Navien at 800-244-8202  from 8 a.m. to 5 p.m. PT or e-mail recall@navien.com or online at https://www.navieninc.com/news for more information.





This recall involves only Navien condensing tankless water heaters and combination boilers with model numbers NPE-180A, NPE-180S and NCB-180E that have been or will be converted from using natural gas to propane gas. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through October 14, 2018. The manufacturing date is identified within the serial number. The serial number is printed on a label which is affixed to the side of the unit and on the product packaging. The first two digits identify the year, the next single digit identifies the month, and the last two digits identify the day. For example, 18709 stands for July 9, 2018. X stands for October.


Product                             Model                 UPC Code        Serial Numbers with date of                                                                                                                        Manufacture

Navien Condensing    

Tankless Water Heater       NPE-180A         884954974101     7410x18709xxxx 7410x188xxxxxx

                                                                                        7410x189xxxxxx 7410x18X14xxxx                                                             


Navien Condensing

Tankless Water Heater       NPE-180S          884954974194   7419x18709xxxx 7419x188xxxxxx       

                                                                                       7419x189xxxxxx 7419x18X14xxxx


Navien Condensing       

Combination Boiler             NCB-180E         884954966083   6608x18709xxxx 6608x188xxxxxx

                                                                                       6608x189xxxxxx 6608x18X14xxxx


                                                   Serial Number Location




Consumers should immediately stop using the recalled water heaters and boilers that are using propane gas and contact Navien for a free replacement conversion kit. Consumers who continue use of the water heaters and boilers while awaiting repair, should have a working carbon monoxide alarm installed outside of sleeping areas in the home.


Incidents/Injuries: None


Sold At: Wholesale distributors to installers nationwide from August 2018 through October 2018 for about $1,400 to $1,700 for water heaters and $3,800 for combination boilers.


Manufacturer(s): Kyung Dong Navien Co. Ltd, South Korea


Importer(s): Navien Inc., of Irvine, Calif.


Manufactured In: South Korea


Recall number: 19-057

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