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The Goodman 10123535 Manual Reset Limit Switch is a genuine OEM safety component built for the Goodman/Amana AKSS920703BXAA gas furnace and compatible models. Identified by its red reset button, this switch opens the control circuit when it detects an over-temperature or flame-rollout condition, shutting the furnace down until the fault is cleared and the button is manually pressed. A furnace should never be operated with this switch bypassed or defeated.
This is a genuine OEM Goodman part with the exact trip temperature and mounting footprint specified for your furnace. Generic universal limit switches may trip at a different setpoint, risking nuisance shutdowns or failing to protect the heat exchanger. For a safety-critical control we strongly recommend OEM.
Easy — Typically two mounting screws and two spade terminals. Cut power at the disconnect before servicing. If the switch tripped, diagnose the root cause (blocked flue, dirty filter, restricted airflow) before returning the furnace to service.