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The Goodman OEM 10123518 Manual Reset Limit Switch is a genuine safety control designed for the AMVC950453BXAA variable-speed gas furnace and compatible Goodman/Amana models. This normally-closed limit switch opens the control circuit and shuts the furnace down when it detects excessive heat or a flame rollout condition, protecting the heat exchanger and your home from overheating. Because it is a manual reset device, it requires the button to be physically pressed to restore operation after a trip — a deliberate safety feature that flags conditions needing technician attention.
Our OEM 10123518 is calibrated to the exact trip temperature specified by Goodman, ensuring the furnace's safety logic behaves as engineered. Generic aftermarket switches may vary in trip point and reset feel, risking nuisance shutdowns or delayed protection. For a life-safety component, OEM is the recommended choice.
Moderate. Requires disconnecting furnace power, removing the burner-compartment panel, and transferring two spade connectors. Most experienced DIYers complete it in 15–20 minutes; if you are unsure, consult a licensed HVAC technician.