OFFICIAL CPSC RECALLDate: 2026-08-20
AeroTherm Series 90 High-Efficiency Residential Condensing Gas Furnaces
Manufacturer: AeroTherm Heating Systems Inc.
Affected Distribution: Approximately 42,000 units across North America
FDA Approved Materials
Non-GMO / Made in USA
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Identified Defect & Hazard Description
The automated gas pilot valve internal diaphragm can fail to seal completely when the thermostat cycles off, allowing unburned natural gas to accumulate in the heat exchanger and creating severe fire and explosion hazards.
Affected Model Numbers:
AT90-40KAT90-60KAT90-80KAT90-100K
Published in accordance with CPSC disclosure protocolsView Federal CPSC Notice
SERVICEFIND ACCREDITED TRADES DIRECTORY
When to Contact a Qualified Professional: Heating & Appliance Inspection
While understanding building standards and hazard mechanics helps protect your family, diagnostic testing and repair of combustion appliances, gas lines, electrical distribution, and structural foundations must only be performed by licensed and bonded contractors.
Critical Indicators Requiring Immediate Certified Trade Intervention:
- Immediate verification of serial numbers on heating equipment.
- Certified gas line shutdown and pressure differential check.
- Safe installation of manufacturer-supplied replacement valve assemblies.
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Emergency Safety Rule: If you suspect active gas leaking or structural collapse, evacuate the structure immediately and dial 911. Never wait for an estimate.