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The Goodman 10123517 Manual Reset Limit Switch is a genuine OEM high-temperature safety control for the Goodman ACSH960704CXAA furnace and compatible units. Unlike auto-reset limits, this manual reset switch latches open when an overheat or flame-rollout condition occurs and requires a deliberate button press to restore operation — by design, so a technician inspects the root cause before the furnace can run again.
The OEM Goodman switch is factory-matched to the correct trip temperature and terminal layout. Generic substitutes may differ in set point or button placement, risking improper protection. For a flame-rollout safety device, always choose OEM.
Easy (1/5). About 10–15 minutes with basic hand tools. Disconnect power before servicing. A tripped manual reset usually signals an underlying issue (blocked flue, dirty burners) — have it diagnosed if it recurs.