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The Goodman 20162903 Primary Limit Switch with a 150°F trip point is a genuine OEM high-limit safety control for the GMH950704CXAA 95% AFUE two-stage gas furnace. Mounted on the heat exchanger or blower deck, this auto-reset snap-disc opens the gas/ignition circuit if supply air temperature exceeds its rating — protecting the heat exchanger from overheating due to restricted airflow, a dirty filter, or a failing blower.
The OEM Goodman 20162903 guarantees the correct 150°F calibration and mounting bracket for a precise drop-in fit. Our generic equivalent matches the trip temperature at a lower cost — verify the L150 rating and bracket length before ordering.
Easy (2/5). Two spade terminals and two mounting screws. Shut off power and gas first. If the limit keeps tripping after replacement, check the air filter, blower speed, and ductwork for airflow restrictions before assuming another part failure.