This recall has not yet been classified by risk level.
Williamson-Thermoflo Gas Boilers Recalled Due to Carbon Monoxide Hazard
What You Should Do
Stop using this product immediately. Do not consume, use, or distribute it.
Consumers who have not already been contacted, should contact their installer for a free safety inspection and repair, if necessary.
Affected Products
The recall involves cast iron, gas-fired boilers used for space heating. The following model names and serial numbers are included in the recall: Model Name Serial Numbers GWS-127, GWS-158 From CP 5160092 through CP 5663040 GWI-063, GWI-095, GWI-127, GWI-158 From CP 4363986 through CP 5699844 The model name and serial number are located on separate labels on the outside of the left panel.
Why Was This Recalled?
If there is a leak in the vent piping, the recalled boilers can leak carbon monoxide (CO) into the buildings in which they are installed, posing a risk of CO poisoning.
Where Was This Sold?
Distribution information not available.
About Weil-McLain, of Michigan City, Ind.
Weil-McLain, of Michigan City, Ind. has 4 total recalls tracked by RecallDetector.
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Data sourced from the CPSC. Last updated March 26, 2026. View original report