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The Goodman 10123533 Manual Reset Limit Switch is a genuine OEM safety control built for the Goodman GKS90703BXAC gas furnace. This high-limit switch monitors heat exchanger and burner-area temperatures and cuts power to the gas valve if an overheat or flame rollout condition is detected, protecting the furnace and your home.
Generic limit switches often trip at incorrect temperature thresholds, causing nuisance shutdowns or, worse, failing to trip when needed. This OEM switch is calibrated to Goodman's exact factory trip point for the GKS9 platform, ensuring reliable, code-compliant safety operation.
Easy to Moderate — A two-wire spade-terminal replacement, but requires locating the correct switch and disconnecting furnace power first. DIY-friendly for handy owners; professional service recommended if the switch repeatedly trips.