CPSC campaign 09002
Hazard
The boiler can leak gas, posing a fire hazard to consumers.
Remedy
Consumers should stop using the boilers immediately weather permitting and contact their certified heating contractor or Viessmann for a free replacement of the boiler's O-ring.
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 Recall data may be incomplete, delayed, or superseded.