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The genuine Goodman 10123535 red manual reset limit switch is a direct-fit safety control for the Amana/Goodman AMH950704CXAF gas furnace. The red button color denotes its specific trip-temperature calibration within the furnace's layered safety network. When abnormal heat or a flame rollout event is detected, this switch opens the control circuit and locks the furnace out until it is manually reset—an intentional design that forces a service check before the burners can relight.
Choosing the OEM Goodman 10123535 guarantees the correct trip point, terminal spacing, and bracket fit. Generic substitutes may look similar but can differ in calibration—too sensitive and you get nuisance shutdowns, too loose and the safety margin is compromised. On a gas-fired appliance, the factory-matched part is the safe and reliable choice.
Easy (2/5) — Mounts with two screws and connects via two spade terminals. Cut power and gas before servicing. Because a tripped rollout switch usually signals a real combustion problem (flue blockage, cracked heat exchanger, dirty burners), have the underlying cause diagnosed before restoring operation.
Professional installation recommended for gas appliances.