CPSC campaign 22176
Hazard
The blocked vent temperature switch (BVTS) can malfunction, which can cause the release of gases, including carbon monoxide (CO), into consumers' homes, posing a risk of carbon monoxide poisoning.
Remedy
Consumers should immediately contact Laars Heating Systems Company to arrange to have a certified technician install repairs at no cost to the consumer. Consumers who continue use of the boiler while awaiting repair should have working carbon monoxide alarms on every level of the home and outside of sleeping areas. The firm is contacting all known purchasers.
The text above is quoted verbatim from the CPSC record. Confirm the affected units and the remedy with the manufacturer or CPSC. Recall data may be incomplete, delayed, or superseded.