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The Goodman 10123532 Manual Reset Limit Switch is a genuine OEM high-temperature safety control for WGGE4324A070MAB gas furnaces. This overheat limit opens the circuit if the furnace exceeds a safe temperature — commonly due to restricted airflow, a dirty filter, or a failing blower — and must be manually reset once the fault is corrected, ensuring a technician inspects the cause before the unit runs again.
Substitute limit switches often carry the wrong trip temperature or mounting profile, which can either nuisance-trip or fail to protect the heat exchanger. This genuine Goodman OEM switch is set to the factory trip point, safeguarding the furnace exactly as designed.
Difficulty: Easy. Disconnect power, transfer the spade terminals, and mount with the original screws in the same orientation. After installing, always diagnose why the limit tripped — check the filter, blower, and airflow — before pressing reset and returning the furnace to service.
An inexpensive, genuine OEM safety part that protects your furnace and your home.