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The Goodman 10123534 Manual Reset Limit Switch is a genuine OEM safety control for the Goodman/Amana AMEC961005CNAB gas furnace. This high-limit / rollout switch monitors temperature and opens the circuit if the furnace overheats or a flame rollout occurs, shutting down the burner to prevent damage and unsafe operation. Because it is a manual reset device, it must be pressed to reset after tripping — a deliberate design that forces a technician to investigate the root cause before the furnace runs again.
Note: verify the switch's trip temperature (°F) against your unit's OEM spec sheet before installing — Goodman ships several trip points under different part numbers.
A limit switch is a safety component, so exact trip temperature and calibration matter. The genuine Goodman 10123534 is factory-calibrated for this furnace; a mismatched generic switch can nuisance-trip or, worse, fail to protect the unit. Always use the OEM-specified part for safety controls.
Moderate. Requires cutting power, removing the burner/blower panel, disconnecting the wire terminals, and swapping the switch. Basic hand tools and a multimeter (to confirm continuity) recommended. If a limit switch has tripped repeatedly, have a qualified HVAC technician diagnose the underlying overheating cause — do not simply bypass it.
Disconnect all power before servicing. Questions on fitment or trip rating? Contact info@nationalhvacparts.com.