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The Goodman 0130F00036 Limit Switch (Pink) is a genuine OEM high-limit safety control for the AMH81155CXCB gas furnace. The pink color code identifies its specific temperature calibration and mounting location on the heat exchanger. This normally-closed switch opens to shut off the burners if supply-air temperature exceeds a safe threshold — protecting the heat exchanger from overheating due to restricted airflow, a dirty filter, or blower failure.
OEM vs. Generic: The pink 0130F00036 is factory-calibrated to this furnace's trip temperature and bracket. Substituting a switch with a different color code or trip point can cause premature limit trips or, worse, allow unsafe temperatures. Always match the OEM color code.
Install difficulty: Easy to moderate. Cut power, remove two screws and the wire terminals, and mount the exact-color replacement in the same position. Confirm airflow issues are resolved so the new switch isn't tripped by the underlying cause.