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The Goodman 10123535 Manual Reset Rollout Limit Switch is a genuine OEM safety control designed for the Goodman GKS90704CXAD gas furnace and compatible Goodman/Amana models. This normally-closed switch monitors the burner box for flame rollout — an unsafe condition where flame escapes the heat exchanger. If excessive heat is detected, the switch opens and shuts the furnace down, then requires a manual press of the red reset button to restore operation, ensuring a technician inspects the cause before the unit runs again.
This is the genuine Goodman OEM switch, factory-calibrated to the exact trip temperature your furnace was engineered for. Aftermarket generics may use looser tolerances that nuisance-trip or fail to protect the heat exchanger correctly. On a safety device, exact calibration matters — we recommend OEM for any rollout or limit control.
Easy (2/5). Two-wire quick-connect replacement mounted to the burner assembly. Cut power at the breaker, note wire positions, unclip the old switch, and mount the new one. Most homeowners with basic tools can complete this in under 15 minutes. If the switch tripped, always diagnose the root cause (blocked flue, cracked heat exchanger, failed inducer) before returning the furnace to service.