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The Goodman 10123535 Manual Reset Limit Switch is a genuine OEM safety control engineered for the Goodman WGFM295045V3BAA gas furnace and compatible models. This high-limit switch protects your furnace by shutting off the burners if the heat exchanger reaches an unsafe temperature — a critical fail-safe against overheating caused by a failed blower, restricted airflow, or a clogged filter. Because it is a manual reset style, it requires the red button to be pressed after a trip, alerting the homeowner or technician that an underlying issue needs attention.
This is a factory OEM Goodman part, guaranteeing the exact trip temperature and mounting fit your furnace was designed around. Generic aftermarket limit switches may carry a different set point or footprint, risking nuisance trips or improper safety response. For a safety-critical control like this, OEM is strongly recommended.
Easy (2/5). Two mounting screws and a pair of quick-connect terminals. Always shut off power and gas before servicing. If the switch keeps tripping after replacement, diagnose the airflow or heat-exchanger issue causing it.