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CPSC recall · Reported November 2, 2023

Lochinvar Recalls Condensing Boilers Due to Risk of Carbon Monoxide Poisoning

The boiler's flue collector can crack if exposed to a high impact event in the burner chamber, which can allow the boiler to emit carbon monoxide, posing a risk of carbon monoxide…

Recall #
24018
Affected scope
About 17, 370 (In addition, about 782 units were sold in Canada)
Verify with CPSC →
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Lochinvar LLC, of Lebanon, Tennessee recalled This recall includes residential condensing boilers, combi boilers and packaged systems s….

Lochinvar Recalls Condensing Boilers Due to Risk of Carbon Monoxide Poisoning was recalled by Lochinvar LLC, of Lebanon, Tennessee in November 2, 2023. Reason: The boiler's flue collector can crack if exposed to a high impact event in the burner chamber, which can allo…. Remedy: Consumers with the recalled boilers should immediately contact the installer or a qualifi…. Verify recall #24018 with the CPSC before acting.

The recall

Lochinvar LLC, of Lebanon, Tennessee issued this CPSC recall-The boiler's flue collector can crack if exposed to a high impact event in the burner chamber, which can allo….

None
agency class
November 2, 2023
reported

Sourced from official CPSC enforcement records. Verify recall #24018 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This recall's affected scope, documented in the Recall Profile below, stays within a single-region or limited-distribution footprint. Distribution information was not included in the agency filing, so consumers should assume broad potential exposure until the firm publishes point-of-sale details. Consumers holding this product should act on the agency's documented remedy above rather than relying on general guidance.

Within the same product category the archive holds 6 closely related recalls, 6 from CPSC - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Household Products recalls over time

Where this recall sits in its category - 3,089 household products recalls on record

50100150200250 20052008201120142017202020232026 148

Product description

This recall includes residential condensing boilers, combi boilers and packaged systems sold by Lochinvar from August 2021 through August 2023. They were sold under the Lochinvar, A. O. Smith, and State Industries brand names and have serial numbers within the range of 125325485 through 134830284. The brand name is printed on the front of each unit. The model number and serial number can be found on the data plate on the product located on the unit's rating plate, which is located either on the inside or outside of the outer jacket of the unit. The following brands and model numbers are included in the recall. Lochinvar Brand NCF110L NCF110N NCF150L NCF150N NCF199L NCF199N NKB080L NKB080N NKB110L NKB110N NKB150L NKB150N NKB199L NKB199N NKC110L NKC110N NKC150L NKC150N NKC199L NKC199N A. O. Smith Brand ACB 110H-N ACB 110H-P ACB 110S-N ACB 110S-P ACB 150H-N ACB 150H-P ACB 150S-N ACB 150S-P ACB 199H-N ACB 199H-P ACB 199S-N ACB 199S-P State Industries Brand SCB 110H-N SCB 110H-P SCB 110S-N SCB 110S-P SCB 150H-N SCB 150H-P SCB 150S-N SCB 150S-P SCB 199H-N SCB 199H-P SCB 199S-N SCB 199S-P

Reason for recall

The boiler's flue collector can crack if exposed to a high impact event in the burner chamber, which can allow the boiler to emit carbon monoxide, posing a risk of carbon monoxide poisoning.

Remedy, what to do

Consumers with the recalled boilers should immediately contact the installer or a qualified technician to schedule a free repair. The repair will consist of installing a steel plate, which will be affixed to the base of the flue collector to act as a reinforcement. Consumers who continue use of the boilers while awaiting repair should have working carbon monoxide alarms outside of sleeping areas and on each floor of the home.

Recall Profile

Structured summary of the CPSC recall record
Attribute Value
Agency U.S. Consumer Product Safety Commission
Severity class Not classified by agency
Status Active
Recall number 24018
Date reported November 2, 2023
Date initiated November 2, 2023
Recalling firm Lochinvar LLC, of Lebanon, Tennessee
Affected scope About 17, 370 (In addition, about 782 units were sold in Canada)
Distribution Not disclosed
Official source CPSC notice →

Profile values are sourced directly from the official CPSC enforcement record. Source: U.S. Consumer Product Safety Commission.

What to do with this recall

Consumers with the recalled boilers should immediately contact the installer or a qualified technician to schedule a free repair.…

  • Check the recall number (24018) and product description against the item you own. Search the archive
  • Confirm the current status and remedy on the official CPSC notice before acting. CPSC notice
  • Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next

This page summarizes the official CPSC record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled?
This recall includes residential condensing boilers, combi boilers and packaged systems sold by Lochinvar from August 2021 through August 2023. They were sold under the Lochinvar, A. O. Smith, and State Industries brand names and have serial numbers within the range of 125325485 through 134830284. The brand name is printed on the front of each unit. The model number and serial number can be found on the data plate on the product located on the unit's rating plate, which is located either on the inside or outside of the outer jacket of the unit. The following brands and model numbers are included in the recall. Lochinvar Brand NCF110L NCF110N NCF150L NCF150N NCF199L NCF199N NKB080L NKB080N NKB110L NKB110N NKB150L NKB150N NKB199L NKB199N NKC110L NKC110N NKC150L NKC150N NKC199L NKC199N A. O. Smith Brand ACB 110H-N ACB 110H-P ACB 110S-N ACB 110S-P ACB 150H-N ACB 150H-P ACB 150S-N ACB 150S-P ACB 199H-N ACB 199H-P ACB 199S-N ACB 199S-P State Industries Brand SCB 110H-N SCB 110H-P SCB 110S-N SCB 110S-P SCB 150H-N SCB 150H-P SCB 150S-N SCB 150S-P SCB 199H-N SCB 199H-P SCB 199S-N SCB 199S-P. Recalled by Lochinvar LLC, of Lebanon, Tennessee. Units affected: About 17, 370 (In addition, about 782 units were sold in Canada).
Why was this product recalled?
The boiler's flue collector can crack if exposed to a high impact event in the burner chamber, which can allow the boiler to emit carbon monoxide, posing a risk of carbon monoxide poisoning.
What should consumers do?
Consumers with the recalled boilers should immediately contact the installer or a qualified technician to schedule a free repair. The repair will consist of installing a steel plate, which will be affixed to the base of the flue collector to act as a reinforcement. Consumers who continue use of the boilers while awaiting repair should have working carbon monoxide alarms outside of sleeping areas and on each floor of the home.
Which agency issued this recall?
This recall was issued by the CPSC on November 2, 2023. CPSC does not publish a hazard classification for this recall. Recall number: 24018.
How do I report an injury from a recalled product?
Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.

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This recall: CPSC, reported November 2, 2023. Severity classes follow each agency's own taxonomy; related-recall context is computed across the full archive.

Methodology · Corrections · Archive as of August 2026