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The Goodman 10123529 Manual Reset Limit Switch is a genuine OEM safety component engineered for the Amana AMVC801005CNAA modulating variable-speed gas furnace and compatible Goodman/Amana platforms. This manual-reset high-limit/rollout switch monitors for abnormal heat conditions and opens the control circuit to shut down the burner if a dangerous temperature or flame rollout is detected — protecting the heat exchanger and your home. Once tripped, it must be manually reset, alerting you to an underlying issue that needs attention.
This is the genuine OEM switch, calibrated to the exact trip temperature specified by the manufacturer. Generic switches may carry a lower price but often use approximate trip points and looser tolerances, which can cause nuisance trips or, worse, fail to open when needed. For a safety-critical component, OEM is the recommended choice.
Easy — Two-wire spade connection with a single or dual mounting screw. Typical replacement takes 15–20 minutes. Always shut off gas and electrical power before servicing.