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The Goodman 10123533 Manual Reset Limit Switch is a genuine OEM flame-rollout safety control engineered for the Goodman GMV951155DXBA 96% AFUE variable-speed gas furnace and compatible GMV/GCV series models. This normally-closed switch monitors for dangerous flame rollout at the burner box and opens the ignition circuit to shut the furnace down if excessive heat is detected — a critical safety device that must be replaced with an exact-match part.
Because this is a manual reset control, a tripped switch will not automatically reset once it cools. After clearing the underlying cause (blocked flue, dirty burners, cracked heat exchanger, or restricted venting), the button must be pressed by hand to restore operation. If your furnace locks out and refuses to fire, a tripped rollout switch is a common culprit.
OEM vs. Generic: Our genuine OEM 10123533 is calibrated to Goodman's exact trip temperature and terminal spacing, guaranteeing correct fit and safety-code compliance. Aftermarket switches may trip early, seat improperly, or void your equipment warranty. For a life-safety component, OEM is the right choice.
Installation difficulty: Easy — most DIY-capable homeowners can swap this in 10–15 minutes with a nut driver. Always shut off gas and power first. If the switch trips again after reset, stop and call a licensed HVAC technician to diagnose the root cause.